View F75377_4396883.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

F75377
F75377 Datasheet
H/W Monitor IC with Automatic Fan Speed Control
Release Date: March, 2008 Revision: V0.12P
March, 2008 V0.12P
F75377
F75377 Datasheet Revision History
Version V0.10P V0.11P V0.12P Date 2007/12/18 2007/12/19 2008/3/3 Page Revision History Preliminary Version. Modify pin assignment and package type Add function/register descriptions
Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners.
LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Fintek for any damages resulting from such improper use or sales.
March, 2008 V0.12P
F75377
Table of Contents
1. GENERAL DESCRIPTION ......................................................................................................................................................8 2. FEATURES ....................................................................................................................................................................................8 3. KEY SPECIFICATIONS ..............................................................................................................................................................9 4. PIN CONFIGURATION.............................................................................................................................................................10 5. PIN DESCRIPTION....................................................................................................................................................................10 5.1. 5.2. POWER PIN ...................................................................................................................................................................11 MONITORING ITEMS AND FAN SPEED CONTROL ...........................................................................................................11
6. FUNCTION DESCRIPTION .....................................................................................................................................................12 6.1 6.2 6.3 6.4 6.5 6.6 ACCESS INTERFACE ..........................................................................................................................................................12 TEMPERATURE MONITORING............................................................................................................................................13 BETA COMPENSATION.......................................................................................................................................................14 PECI/SST MASTER ..........................................................................................................................................................15 FAN CONTROL MACHINE..................................................................................................................................................15 PCB LAYOUT GUIDE ........................................................................................................................................................19
7. REGISTER DESCRIPTION ......................................................................................................................................................20 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 CONFIGURATION REGISTER INDEX 01H .......................................................................................................................20 CONFIGURATION REGISTER INDEX 0AH.......................................................................................................................20 TCCA TEMP REGISTER INDEX 0CH............................................................................................................................21 SST ADDRESS REGISTER INDEX 0DH...........................................................................................................................21 PECI SLOPE REGISTER INDEX 0EH ..............................................................................................................................21 CONFIGURATION REGISTER INDEX 11H........................................................................................................................21 EXTERNAL DEVICE ADDRESS REGISTER - INDEX 40H ~ 46H ............................................................................................22 EXTERNAL DEVICE INDEX REGISTER - INDEX 48H ~ 4EH.................................................................................................22 EXTERNAL DEVICE DATA REGISTER - INDEX 4F...............................................................................................................22 EXTERNAL DEVICE ENABLE REGISTER - INDEX 50H.....................................................................................................22 EXTERNAL DEVICE SELECT REGISTER - INDEX 51H......................................................................................................22 EXTERNAL DEVICE MONITORING FREQUENCY SELECT REGISTER 1 - INDEX 52H.........................................................23 EXTERNAL DEVICE MONITORING FREQUENCY SELECT REGISTER 2 - INDEX 53H.........................................................23 I2C MASTER CONTROL REGISTER - INDEX 54H ............................................................................................................23 INTERFACE CONTROL REGISTER - INDEX 55H ...............................................................................................................23
3
March.,
2008 V0.12P
F75377
7.16 7.17 7.18 7.19 7.20 7.21 7.22 7.23 7.24 7.25 7.26 7.27 7.28 7.29 7.30 7.31 7.32 7.33 7.34 7.35 7.36 7.37 7.38 7.39 7.40 7.41 7.42 7.43 7.44 7.45 7.46 7.47 7.48 7.49 7.50 7.51 I2C MASTER STATUS REGISTER - INDEX 56H................................................................................................................23 FAN PIN FUNCTION SELECT AND PIN STATUS REGISTER - INDEX 57H ...........................................................................24 FAN GPIO FUNCTION CONTROL REGISTER - INDEX 58H...............................................................................................24 TEMPERATURE PME# ENABLE REGISTER INDEX 60H (IF DEV_BANK_EN IS 0) ....................................................24 TEMPERATURE PME# ENABLE REGISTER INDEX 60H (IF DEV_BANK_EN IS 1) ....................................................24 TEMPERATURE INTERRUPT STATUS REGISTER INDEX 61H (IF DEV_BANK_EN IS 0)..............................................25 TEMPERATURE INTERRUPT STATUS REGISTER INDEX 61H (IF DEV_BANK_EN IS 1)..............................................25 TEMPERATURE REAL TIME STATUS REGISTER INDEX 62H (IF DEV_BANK_EN IS 0)..............................................26 TEMPERATURE REAL TIME STATUS REGISTER INDEX 62H (IF DEV_BANK_EN IS 1)..............................................26 EXTERNAL DEVICE BANK SELECT REGISTER INDEX 65H .........................................................................................27 TEMPERATURE OFFSET BANK SELECT REGISTER -- INDEX 67H .....................................................................................27 TEMPERATURE OFFSET REGISTER -- INDEX 68H ...........................................................................................................27 LOCAL AND TEMP1 LIMIT HYSTERSIS SELECT REGISTER -- INDEX 6CH (IF DEV_BANK_EN IS 0) .........................28 TEMP3 AND TEMP4 LIMIT HYSTERSIS SELECT REGISTER -- INDEX 6CH (IF DEV_BANK_EN IS 1)..........................28 TEMP2 LIMIT HYSTERSIS SELECT REGISTER -- INDEX 6DH (IF DEV_BANK_EN IS 0) ..............................................28 TEMP5 AND TEMP6 LIMIT HYSTERSIS SELECT REGISTER -- INDEX 6DH (IF DEV_BANK_EN IS 1)..........................28 TEMP7 AND TEMP8 LIMIT HYSTERSIS SELECT REGISTER -- INDEX 6EH (IF DEV_BANK_EN IS 1) ..........................29 DIODE OPEN STATUS REGISTER -- INDEX 6FH (IF DEV_BANK_EN IS 0)...............................................................29 DIODE OPEN STATUS REGISTER -- INDEX 6FH (IF DEV_BANK_EN IS 1)...............................................................29 TEMPERATURE REGISTER INDEX 70H ~ 83H .............................................................................................................30 TEMPERATURE FILTER SELECT REGISTER -- INDEX 8EH ...............................................................................................31 FAN PME# ENABLE REGISTER INDEX 90H ..............................................................................................................31 FAN INTERRUPT STATUS REGISTER INDEX 91H........................................................................................................32 FAN REAL TIME STATUS REGISTER INDEX 92H........................................................................................................32 FAN TYPE SELECT REGISTER -- INDEX 94H...................................................................................................................32 FAN MODE SELECT REGISTER -- INDEX 96H..................................................................................................................33 AUTO FAN1 AND FAN2 BOUNDARY HYSTERSIS SELECT REGISTER -- INDEX 98H..........................................................33 AUTO FAN3 AND FAN4 BOUNDARY HYSTERSIS SELECT REGISTER -- INDEX 99H..........................................................34 FAN1~FAN3 UP FAN DUTY CHANGE RATE SELECT REGISTER -- INDEX 9A ..................................................................34 FAN1~FAN3 DOWN FAN DUTY CHANGE RATE SELECT REGISTER -- INDEX 9BH ..........................................................34 FAN1 AND FAN2 START UP DUTY-CYCLE/VOLTAGE INDEX 9CH ...................................................................35 FAN3 AND FAN4 START UP DUTY-CYCLE/VOLTAGE INDEX 9DH ...................................................................35 FAN SMI TIME REGISTER -- INDEX 9FH........................................................................................................................35 FAN1 INDEX A0H- AFH.................................................................................................................................................36 FAN2 INDEX B0H- BFH.................................................................................................................................................37 FAN3 INDEX C0H- CFH.................................................................................................................................................37
4
March.,
2008 V0.12P
F75377
7.52 7.53 7.54 7.55 7.56 7.57 7.58 7.59 7.60 7.61 7.62 7.63 7.64 7.65 7.66 7.67 7.68 7.69 7.70 7.71 7.72 7.73 7.74 7.75 7.76 7.77 7.78 7.79 7.80 7.81 7.82 7.83 7.84 7.85 7.86 7.87 FAN1 CONTROL REGISTER - INDEX D0H .....................................................................................................................38 FAN2 CONTROL REGISTER - INDEX D1H .....................................................................................................................38 FAN3 CONTROL REGISTER - INDEX D2H .....................................................................................................................39 FAN CONTROL REGISTER - INDEX D3H .......................................................................................................................39 FAN TABLE BANK SELECT - INDEX D5H ........................................................................................................................39 FAN T0 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................40 FAN T0 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................40 FAN T0 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................40 FAN T0 CONTROL REGISTER 4 - INDEX D9H..............................................................................................................41 FAN T0 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................41 FAN T0 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................41 FAN T0 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................42 FAN T0 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................42 FAN T1 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................42 FAN T1 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................42 FAN T1 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................43 FAN T1 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................43 FAN T1 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................44 FAN T1 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................44 FAN T1 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................44 FAN T1 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................44 FAN T2 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................45 FAN T2 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................45 FAN T2 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................46 FAN T2 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................46 FAN T2 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................46 FAN T2 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................46 FAN T2 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................47 FAN T2 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................47 FAN T3 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................47 FAN T3 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................48 FAN T3 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................48 FAN T3 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................48 FAN T3 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................49 FAN T3 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................49 FAN T3 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................49
5
March.,
2008 V0.12P
F75377
7.88 7.89 7.90 7.91 7.92 7.93 7.94 7.95 7.96 7.97 7.98 7.99 7.100 7.101 7.102 7.103 7.104 7.105 7.106 7.107 7.108 7.109 7.110 7.111 7.112 7.113 7.114 7.115 7.116 7.117 7.118 7.119 7.120 7.121 7.122 7.123 FAN T3 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................50 FAN T4 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................50 FAN T4 CONTROL REGISTER 2 - INDEX D7H..............................................................................................................50 FAN T4 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................51 FAN T4 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................51 FAN T4 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................51 FAN T4 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................52 FAN T4 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................52 FAN T4 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................52 FAN T5 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................52 FAN T5 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................53 FAN T5 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................53 FAN T5 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................54 FAN T5 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................54 FAN T5 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................54 FAN T5 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................54 FAN T5 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................55 FAN T6 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................55 FAN T6 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................55 FAN T6 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................56 FAN T6 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................56 FAN T6 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................56 FAN T6 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................57 FAN T6 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................57 FAN T6 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................57 FAN T7 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................57 FAN T7 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................58 FAN T7 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................58 FAN T7 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................59 FAN T7 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................59 FAN T7 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................59 FAN T7 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................59 FAN T7 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................60 FAN T8 CONTROL REGISTER 1 - INDEX D6H ...............................................................................................................60 FAN T8 CONTROL REGISTER 2 - INDEX D7H ...............................................................................................................60 FAN T8 CONTROL REGISTER 3 - INDEX D8H ...............................................................................................................61
6
March.,
2008 V0.12P
F75377
7.124 7.125 7.126 7.127 7.128 FAN T8 CONTROL REGISTER 4 - INDEX D9H ...............................................................................................................61 FAN T8 CONTROL REGISTER 5 - INDEX DAH ..............................................................................................................61 FAN T8 CONTROL REGISTER 6 - INDEX DCH...............................................................................................................62 FAN T8 CONTROL REGISTER 7 - INDEX DDH ..............................................................................................................62 FAN T8 CONTROL REGISTER 8 - INDEX DEH...............................................................................................................62
8. ELECTRICAL CHARACTERISTIC........................................................................................................................................63 8.1 ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................63 8.2 DC CHARACTERISTICS ..........................................................................................................................................................63 8.3 AC CHARACTERISTICS ..........................................................................................................................................................65 9. ORDERING INFORMATION ...................................................................................................................................................65 10. PACKAGE DIMENSIONS......................................................................................................................................................66
7
March.,
2008 V0.12P
F75377
1. General Description
F75377 is a system hardware monitoring and automatic fan speed controlling IC specific designed for graphic cards and PC etc. The F75377 can monitor several critical hardware parameters of the system, including temperatures and fan speeds which are very important for the system to work stably and properly. The chip can monitor up to 3 fan tachometer inputs and 9 temperature inputs (6 remotes from external sensor devices by I2C/SST interface, 2 remotes from external sensor D1+/D2+ and 1 local sensor). The remote temperature sensor can be performed by transistor 2N3906 and CPU/GPU thermal diode. The F75377 also supports beta-compensation algorithm (BJT Model) for new generational 45nm CPU. In fan control machine, the F75377 can provide automatic fan speed control so that the system can operate at the minimum acoustic noise. This chip supports not only PWM duty mode (PWMOUT) for fan speed control. The F75377 supports Heceta-like function; the fan speed control can follow one or more different temperature inputs. Besides 3 sets temperature inputs, also can read temperature from other devices by I2C, SST and PECI interfaces. The I2C Master supports general temperature sensor device protocol, AMD TSI protocol and next generational Intel chipset MCTP SMBus protocol. Others, internal oscillator was built in this chip. Also the users can set up the upper and lower limits (alarm thresholds) of all monitored parameters and the F75377 can also issue warning messages for system protection when there is something wrong with monitored items. Through the BIOS or application software, the users can read all the monitored parameters of system all the time. And a pop-up warning can be also activated when the monitored item was out of the proper/pre-setting range. The F75377 is in the green package of 150mil 20-pin SSOP and powered by 3.3V.
2. Features
Provide 1 on-chip local and 2 remote temperature sensors Accuracy 1 oC from +60oC to +100oC on remote channel Accuracy 3 oC from +60oC to +100oC on local channel Support 6 temperature inputs from external sensor devices (ex: F75395/F75393) Beta-compensation support for new generational CPU. Up to 3 fan speed monitoring inputs and 3 automatic fan speed control
8
March.,
2008 V0.12P
F75377
Fan-Temperature mapping selection support. Provide PME protection signals Programmable limited and setting points for all monitored items Support 4 GPIO pins for flexible application Support PWM fan control 4-pins PWM fan support PECI interface for Intel CPU temperature sensing SST Master interfaces for external devices' temperature sensing SST Slave interface for Intel Chipset 2-wire I2C Master/Slave interfaces I2C protocol support AMD TSI and Intel MCTP I2C to SST Master bridge VCC3V operation and 20-SSOP Green Package(150mil)
3. Key Specifications
Supply Voltage Operating Supply Current Measured Range Remote Diode Temperature Accuracy Local Temperature Accuracy 3.0V to 3.6V 1mA typ. -40 ~ 127 oC 1oC from +60oC to +100oC 3oC from +60oC to +100oC
9
March.,
2008 V0.12P
F75377
4. Pin Configuration
,
5. Pin Description
ILv/OD8-S1 OOD12 AOUT OD12 OD12-5V INts5V AIN P - Low level bi-directional pin (VIH - Output pin(Analog). - Open-drain output pin with 12 mA sink capability. Open-drain output pin with 12 mA sink capability, 5V tolerance. - TTL level input pin and schmitt trigger, 5V tolerance. - Input pin(Analog). - Power. 0.9V, VIL 0.6V.). Output with 8mA drive and 1mA sink capability.
- can select to OD or OUT by register, with 12 mA source-sink capability.
10
March.,
2008 V0.12P
F75377
5.1. Power Pin
Pin No. 1 20 8 Pin Name VCC VSB GND Type P P P Description 3.3V power supply voltage input 3.3V standby power supply voltage input GND
5.2. Monitoring Items and Fan Speed Control
Pin No. 2 3 4 5 6 7 9 10 Pin Name Type
SST_M PECI
SST_S D1+ DD2+ FANIN3 GPIO3 FANCTL3 GPIO2 FANIN2 GPIO1 FANCTL2 GPIO0 FANIN1 FANCTL1 PME#
ILv/OD8-S1 ILv/OD8-S1 ILv/OD8-S1 AOUT AIN AGND AOUT AIN
INts5V INts5V/OD12
PWR VCC
Description Intel SST master hardware monitor interface
VCC
VCC VCC VCC VCC VCC VCC
Intel PECI hardware monitor interface.
Intel SST slave hardware monitor interface Positive connection to remote temperature sensor Negative connection to remote temperature sensor Positive connection to remote temperature sensor 0V to +3.3V amplitude fan tachometer input. General purpose I/O pin. Default Open drain Use PWM duty cycle to control fan3 speed. Use linear voltage output (0~3.3V) to control fan3 speed. General purpose I/O pin. Default Open drain 0V to +3.3V amplitude fan tachometer input. General purpose I/O pin. Default Open drain Use PWM duty cycle to control fan2 speed. Use linear voltage output (0~3.3V) to control fan2 speed. General purpose I/O pin. Default Open drain 0V to +3.3V amplitude fan tachometer input. Use PWM duty cycle to control fan1 speed. Use linear voltage output (0~3.3V) to control fan1 speed. System management interrupt (Pure open drain). This pin will be active low when there is something wrong with voltage, temperature and fan. See register description index 33h Slave serial bus clock Slave serial bus data Master serial bus clock Master serial bus data
OOD12 AOUT INts5V/OD12
INts5V INts5V/OD12
11 12
VCC VCC
OOD12 AOUT INts5V/OD12
INts5V
13 14 15
OOD12 AOUT OD12-5v
VCC VCC VCC
16 17 18 19
SCLK_S SDATA_S SCLK_M SDATA_M
INts5V INts5V/OD12 INts5V INts5V/OD12
VCC VCC VCC VCC
11
March.,
2008 V0.12P
F75377
6. Function Description
F75377 is a system hardware monitoring and automatic fan speed controlling IC specific designed for graphic cards and PC etc. The F75377 can monitor several critical hardware parameters of the system, including temperatures and fan speeds which are very important for the system to work stably and properly. The chip can monitor up to 3 fan tachometer inputs and 9 temperature inputs (6 remotes from external sensor devices by I2C/SST interface, 2 remotes from external sensor D1+/D2+ and 1 local sensor). The remote temperature sensor can be performed by transistor 2N3906 and CPU/GPU thermal diode. The F75377 also supports beta-compensation algorithm (BJT Model) for new generational 45nm CPU. In fan control machine, the F75377 can provide automatic fan speed control so that the system can operate at the minimum acoustic noise. This chip supports not only PWM duty mode (PWMOUT) for fan speed control. The F75377 supports Heceta-like function; the fan speed control can follow one or more different temperature inputs. Besides 3 sets temperature inputs, also can read temperature from other devices by I2C, SST and PECI interfaces. The I2C Master supports general temperature sensor device protocol, AMD TSI protocol and next generational Intel chipset MCTP SMBus protocol. Others, internal oscillator was built in this chip. Also the users can set up the upper and lower limits (alarm thresholds) of all monitored parameters and the F75377 can also issue warning messages for system protection when there is something wrong with monitored items.
6.1 Access Interface
The F75377 can be connected to a compatible 2-wire serial system management bus as a slave device under the control of the master device, using two device terminals SCL and SDA. The F75377 supports I2C protocol of, "Write Byte", "Read Byte", both with or without Packet Error checking (PEC) which is calculated using CRC-8. For detail information about PEC, please check I2C specification. F75377 also supports Alert Response Address (ARA) protocol. The operation of the protocol is described with details in the following sections.
(a) I2C write to internal address register followed by the data byte
12
March.,
2008 V0.12P
F75377
0 SCL SDA
Start By Master
7
8
0
7
8
1
0
0
1
1
0
0
R/W
Ack by 395
D7
D6
D5
D4
D3
D2
D1
D0
Ack by 395
Frame 1 Serial Bus Address Byte 0
Frame 2 Internal Index Register Byte
7 SCL (Continued) SDA (Continued) D7 D6 D5 D4 D3 D2 D1 D0
8
Stop by Master
Frame 3 Data Byte
Figure 1. Serial Bus Write to Internal Address Register followed by the Data Byte
(b) Serial bus write to internal address register only
0 SCL SDA
Start By Master
7
8
0
7
8
1
0
0
1
1
1
0
R/W
Ack by 395
D7
D6
D5
D4
D3
D2
D1
D0
Ack by 395 Stop by Master
Frame 1 Serial Bus Address Byte 0
Frame 2 Internal Index Register Byte
Figure 2. Serial Bus Write to Internal Address Register Only
(c) Serial bus read from a register with the internal address register prefer to desired location
0 SCL SDA
Start By Master
7
8
0
7
8
1
0
0
1
1
1
0
R/W
Ack by 395
D7
D6
D5
D4
D3
D2
D1
D0
Ack by Master Stop by Master
Frame 1 Serial Bus Address Byte 0
Frame 2 Internal Index Register Byte
Figure 3. Serial Bus Read from Internal Address Register
6.2 Temperature Monitoring
The F75377 monitors local and 2 remote temperature sensors. Both can be measured from -40C to 127C. The temperature format is as the following table:
Temperature ( High Byte )
Digital Output
Temperature ( Low Byte )
Digital Output
0C 1C 25C
0000 0000 0000 0001 0001 1001
0C 0.125C 0.250C
000 0 0000 001 0 0000 010 0 0000
13
March.,
2008 V0.12P
F75377
50C 75C 90C 100C 140C 0011 0010 0100 1011 0101 1010 0110 0100 1000 1100 0.375C 0.500C 0.625C 0.750C 0.875C 011 0 0000 100 0 0000 101 0 0000 110 0 0000 111 0 0000
Remote-sensor transistor manufacturers
Manufacturer Panasonic Philips
Model Number 2SB0709 2N3906 PMBT3906
6.3 Beta Compensation
The F75377 is configured to detect the temperature of diodes (e.g. 2N3906) or CPU thermal diodes. The diode can be connected in different way as below Figure.
D+ D-
D+ D-
Substrate PNP transistor i.e. CPU
Discrete PNP transistor i.e. 2N3906
The basic of the temperature sensor follows mathematical formula as below:
VBE
1 + 1 Ic1 KT Ie1 KT = x ln = x ln 1 q Ie2 q 1 + 2 Ic 2 2
The F75377 measures temperature from the thermal diodes by the basic. In traditional case, the F75377 outputs dual currents to a thermal diode. Then the F75377 calculates the absolute temperature by VBE. For discrete transistor (i.e. 2N3906), the beta is normally very high such that the percent change in beta is very small. For example, 15% variation in beta for two forced IE currents and the beta is 50 would contribute about 0.32J error per 100J . For Substrate PNP transistor (i.e. CPU), the beta is very small such that the proportional beta variation will very high, and it will cause large error in temperature
14
March.,
2008 V0.12P
F75377
measurement. For example, 15% variation in beta for two forced IE currents and the beta is 0.5 would contribute about 11.12J error per 100J . In Order to solve the second issue, the F75377 provides a beta compensation solution for accurate temperature sensing. The F75377 can support the beta range over 0.2 for beta compensation. In this new method, the F75377 will provide two IE currents, and feedback two IB currents. The F75377 will auto-adjust IE (IE1 and IE2) current and feedback IB (IB1 and IB2) promptly for getting proper IC proportion (IC1/ IC2), then calculates the accurate temperature. This algorithm of beta compensation is suitable for substrate transistor or new generational CPU (i.e. 45nm CPU) because small beta and high proportional beta variation.
6.4 PECI/SST Master
F75377 Support 6 external device inputs for temperature reading by SST and pass to host by I2C. It's really a SST to I2C bridge IC for some specific SST temperature sensors' application. User can ready SST temperature sensor by F75377 bridge function. For instance, user would like to read an external SST temperature sensor by F75377. She could follow below list to read the SST Device Temperature.
If the address/index of SST device is 49h/00h.Before you read the temperature from SST device. You should do below list: 1. 2. 3. write register 49h to register 40h (Define external device0 address) write 00h to register 48h (Define external device0 index) write "1" to register 50h bit 0 (Enable external device0)
4. read register 78h to get the temperature value of SST device
Totally the F75377 can support 6 external device inputs by SST master. About the detail setting of register, please refer the register description. Others, the F75377 also support PECI Master for CPU temperature reading. Than the fan control
machine can implement the Fan to cool down CPU temperature Please refer the register description for detail.
6.5 Fan Control Machine
Fan speed count
Inputs are provided by the signals from fans equipped with tachometer outputs. The level of these signals should be set to TTL level, and maximum input voltage cannot be over 5V. If the input signals from the tachometer outputs are over the 5V, the external trimming circuit should be added to reduce the voltage
15
March.,
2008 V0.12P
F75377
to obtain the input specification. The normal circuit and trimming circuits are shown as follows:
+12V Pull-up resister 4.7K Ohms Pull-up resister < 1K or totem-pole output +12V FAN Out GND 10K 22K~30K Fan Input +12V FANIN 1 FAN Out GND > 1K +12V
Fan Input
FANIN 1
F75377
3.3V Zener
FAN Connector
F75377
Fan with Tach Pull-Up to +12V, or Totern-Pole Output and Register Attenuator
+5V Pull-up resister 4.7K Ohms
Fan with Tach Pull-Up to +12V, or Totem-Pole Putput and Zener Clamp
+5V
Pull-up resister < 1K or totem-pole output +5V FAN Out GND 10K 1K~2.7K Fan Input +5V FANIN1 FAN Out GND > 1K
Fan Input
FANIN1
F75377
3.3V Zener
FAN Connector
F75377
Fan with Tach Pull-Up to +5V, or Totern-Pole Output and Register Attenuator
Fan with Tach Pull-Up to +5V, or Totem-Pole Putput and Zener Clamp
Determine the fan counter according to:
Count = 1.5 x 10 6 RPM
In other words, the fan speed counter has been read from register, the fan speed can be evaluated by the following equation. As for fan, it would be best to use 2 pulses tachometer output per round.
RPM = 1.5 x 10 6 Count
Fan speed control
The F75377 provides PWM DUTY fan speed control method. The duty cycle of PWM can be programmed by a 8-bit register. The default duty cycle is set to 100%, that is, the default 8-bit registers is set to FFh. The expression of duty can be represented as follows.
Duty_cycle(%) =
Programmed 8bit Register Value x 100% 255
16
March.,
2008 V0.12P
F75377
+12V +5V
R1 R2 D G PWM Clock Input NMOS S + C FAN PWM Clock Input G PNP Transistor
R1 R2 D NMOS S + C FAN PNP Transistor
Fan speed control mechanism
There are some modes to control fan speed and they are 1.Stage auto mode, 2. Linear auto mode. More detail, please refer the description of registers.
Stage auto mode At this mode, the F75377 provides automatic fan speed control related to temperature variation of CPU/GPU or the system. The F75377 can provide two temperature boundaries and three intervals, and each interval has its related fan speed PWM duty. All these values should be set by BIOS first. Take figure as example. When temperature boundaries are set as 45 and 75C and there are three intervals. The related desired fan speed for each interval are 40%, 80% and 100% (fixed). When the temperature is within 45~75'C, the fan speed will follow 80% PWM duty and that define in registers. It can be said that the fan will be turned on with a specific speed set by BIOS and automatically controlled with the temperature variation. The F75377 will take charge of all the fan speed control and need no software support.
Temperature PWM Duty 100% 75 Degree C 80% 45 Degree C 40% Temperature Fan Speed
Below is a sample for Stage auto mode: Set temperature as 60C, 40C and Duty as 100%, 70%, 50%
17
March.,
2008 V0.12P
F75377
PWM duty 100% 60 Degree C hysteresis 57 Degree C 40 Degree C 50%
70%
Temp. Fan Speed
a
b
c
d
Once temp. is under 40C, the lowest fan speed keeps 50% PWM duty. Once temp. is over 40C,60C, the fan speed will vary from 70% to 100% PWM duty and increase with temp. level. Once temp. keeps in 55C, fan speed keeps in 70% PWM duty. If set the hysteresis as 3C (default 4C), once temp reduces under 57C, fan speed reduces to 70% PWM duty and stays there.
Linear auto mode Otherwise, F75377 supports linear auto mode. Below has a example to describe this mode. More detail, please refer the register description. Set temperature as 70C, 40C and Duty as 100%, 70%, 40%
PWM duty 70 Degree C hysteresis 65 Degree C 100%
70%
40 Degree C
Temp. Fan Speed
40%
a
b
c
d
Once temp. is under 40C, the lowest fan speed keeps 40% PWM duty. Once temp. is over 40C and under 70C, the fan speed will vary from 40% to 70% PWM duty and linearly increase with temp. variation. The temp.-fan speed monitoring and flash interval is 1sec. Once temp. goes over 70C, fan speed will directly increase to 100% PWM duty (full speed). If set the hysteresis as 5C(default is 4C), once temp reduces under 65C (not 70C), fan speed reduces from 100% PWM duty and decrease linearly with temp..
18
March.,
2008 V0.12P
F75377
6.6 PCB Layout Guide
PCB can be electrically noisy environments, and the F75377 is measuring very small voltage from the remote sensor, so care must be taken to minimize noise which is occurred at the sensor inputs. The following guideline should be taken to reduce the measurement error of the temperature sensors: Place the F75377 as close as practical to the remote sensing diode. In noisy environments, such as a computer main-board, the distance can be 4 to 8 inches. (typ). This length can be increased if the worst noise sources are avoided. Noise sources generally include clock generators, CRTs, memory buses and PCI/ISA bus etc. Route the D+ and D- tracks close together, in parallel, with grounded guard tracks on each side. Provide a ground plane under the tracks if possible. Do not route D+ & D- lines next to the deflection coil of the CRT. And also don't route the trace across fast digital signals which can easily induce bigger error.
GND 10MILS DXP MINIMUM DXN 10MILS GND 10MILS 10MILS
Use wide tracks to minimize inductance and reduce noise pickup. 10 mil track minimum width and spacing is recommended. Try to minimize the number of copper/solder joints, which can cause thermocouple effects. Where copper/solder joints are used, make sure that they are in both the D+ and D- path and at the same temperature. Thermocouple effects should not be a major problem as 1J corresponds to about 200V. It means that a copper-solder thermocouple exhibits 3V/J , and takes about 200V of the voltage error at D+ & D- to cause a 1J measurement error. Adding a few thermocouples causes a negligible error. Place a 0.1F bypass capacitor close to the VCC pin. In very noisy environments, place an external 2200pF input filter capacitors across D+, D- close to the F75377. If the distance to the remote sensor is more than 8 inches, the use of twisted pair cable is recommended. It will work up to around 6 to 12 feet. Because the measurement technique uses switched current sources, excessive cable and/or filter capacitance will affect the measurement accuracy. When using long cables, the filter capacitor may be reduced or removed. Cable resistance can also induce errors. 1 series resistance introduces about 0.5J error.
19
March.,
2008 V0.12P
F75377
7. Register Description
7.1
Configuration Register Index 01h
Name FAN_START R/W Default R R R R/W R/W R/W 0 0 0 0 0 1 Reserved Reserved Reserved Reserved (Fintek use only) Reserved Set one to enable startup of fan monitoring operations; a zero puts the part in standby mode. Set one to enable startup of temperature monitoring operations; a zero puts the part in standby mode. Description
Bit 7 6 5-4 3 2 1
0
T_START
R/W
1
7.2
Configuration Register Index 0Ah
Bit 7 6 5 4
Name SST_3V_EN IIR_EN SST_EN
R/W Default R/W R/W R/W 0 0 1 0 Reserved
Description
Enable SST master to output 3 volt data Set 1 to enable IIR for PECI reading. The reading will be more stable. Enable SST slave PECI (Vtt) voltage select. 00: Vtt is 1.3V
3-2
VTT_SEL
R/W
0
01: Vtt is 1.2V 10: Vtt is 1.10V 11: Vtt is 1.00V
1-0
-
R
0
Reserved
20
March.,
2008 V0.12P
F75377
7.3 TCCA TEMP Register Index 0Ch
Bit
Name
R/W Default TCC Activation Temperature.
Description
7
TCCA_TEMP
R/W
0
The absolute value of CPU temperature is calculated by the equation: CPU_TEMP = TCCA_TEMP + PECI Reading. The range of this register is 0 ~ 255.
7.4
SST Address Register Index 0Dh
Bit 7 6-0
Name SST_ADDR
R/W Default R R/W 0 4C Reserved SST slave address
Description
7.5
PECI Slope Register Index 0Eh
Bit 7-4
Name -
R/W Default R 0 0 Reserved
Description
This register is used to control the PECI reading slope. See also PECI_SCALE_ADD register. 000: The real value is the PECI reading. 001: The real value is (1 1/2) PECI reading.
3-0
SCALE
R/W
010: The real value is (1 1/4) PECI reading. 011: The real value is (1 1/8) PECI reading. 100: The real value is (1 1/16) PECI reading. 101: The real value is (1 1/32) PECI reading. 110: The real value is (1 1/64) PECI reading. 111: The real value is (1 1/128) PECI reading.
7.6
Configuration Register Index 11h
Bit 7
Name ARA_EN
R/W Default R/W 0 Enable I2C response ARA
Description
21
March.,
2008 V0.12P
F75377
6 5 4 3-0 PME_INV PME_MODE GLOBAL_PME_EN R/W R/W R/W R 0 0 1 0 0: PME is low active 1:PME is high active 0: level mode 1: pulse mode (120us) Global PME enable Reserved
7.7
External Device Address Register - Index 40h ~ 46h
Bit 7-0
Name DEV_ADDR
R/W Default R/W 0
Description Device address of device0 ~ device6 (device 6 for PECI pin use, default address is 40h)
7.8
External Device Index Register - Index 48h ~ 4Eh
Bit 7-0
Name DEV_INDEX
R/W Default R/W 0
Description Device index of device0 ~ device6 (PECI 00h)
7.9
External Device Data Register - Index 4F
Bit 7-0
Name DEV_DATA
R/W Default R/W 0
Description Data used to write to I2C devices or read from I2C devices
7.10
External Device Enable Register - Index 50h
Bit 7 6-0
Name
R/W Default 0 0
Description 0: The reading of T1 will be updated with 8'hBB when PECI CRC error 1: The reading of T1 will not be updated when PECI CRC error External device enable. (Bit mask) Bit 0 for External device0 Bit 1 for External device2 ......
PECI_CRC_UPDATE R/W DEV_EN R/W
7.11
External Device Select Register - Index 51h
Bit 7-6 5-0
Name DEV_SEL
R/W Default R R/W 0 Reserved
Description 0:SST, 1:I2C (Bit 0 is for device0, Bit 1 is for device1...etc.)
22
March.,
2008 V0.12P
F75377
7.12 External Device Monitoring Frequency Select Register 1 - Index 52h
Bit 7-6 5-4 3-2 1-0
Name CYC_SEL3 CYC_SEL2 CYC_SEL1 CYC_SEL0
R/W Default R/W R/W R/W R/W
Description
2'b11 Select device monitoring cycle: 2'b11 2'b11: 8hz 2'b11 2'b10: 4hz 2'b01: 2hz 2'b11 2'b00: 1hz
7.13
External Device Monitoring Frequency Select Register 2 - Index 53h
Bit 7-6 5-4 3-2 1-0
Name Reserved CYC_SEL6 CYC_SEL5 CYC_SEL4
R/W Default R R/W R/W R/W 0
Description
Select device monitoring cycle: 2'b11 2'b11: 8hz 2'b10: 4hz 2'b11 2'b01: 2hz 2'b11 2'b00: 1hz
7.14
I2C Master Control Register - Index 54h
Bit 7-6 0
Name I2C_DEV_ADDR WR_N / RD
R/W Default R/W R 0 0
Description I2C device address to be written or read Set 0 to start I2C byte write. Set 1 to start I2C byte read
7.15
Interface Control Register - Index 55h
Bit 7 6 5 4-2 1 0
Name RESET_PECI_EN RESET_SST_EN RESET_DEV_SEL PEC_EN SR_EN
R/W Default R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0
Description Set this bit to reset PECI device, this bit will be cleared after reset Set this bit to reset SST device, this bit will be cleared after reset Reserved Select which SST device to be reset Enable PEC (CRC) of I2C devices Enable repeat start of I2C devices
7.16
I2C Master Status Register - Index 56h
Bit
Name
R/W Default
Description
23
March.,
2008 V0.12P
F75377
5 4 3 2 1 0 ARBIT_LOST NACK_ERR I2CM_TIMEOUT I2CM_PEC_ERR FINISH BUS_BUSY WC WC WC WC WC R 0 0 0 0 0 0 I2C master arbitration lost status I2C master NACK with error status I2C master timeout status I2C master PEC error status Finish I2C byte read or byte write status Bus busy status
7.17
Fan Pin Function Select and Pin Status Register - Index 57h
Bit 7 6 5 4 3-0
Name FANIN3 FANIN2 FANCTRL3 FANCTRL2 FAN_PIN_MODE
R/W Default R R R R R/W 0 Pin status Pin status Pin status Pin status 0: FAN function 1: GPIO
Description
7.18
Fan GPIO Function Control Register - Index 58h
Bit
Name
R/W Default 0 0 1: Push Pull 0:Open drain GPIO OUTPUT DATA
Description
7-4 FAN_GPOUT_MODE R/W 3-0 FAN_GPOUT R/W
7.19
Temperature PME# Enable Register Index 60h (If DEV_BANK_EN is 0)
Bit 7-3 2 1 0
Name EN_ T2_EXC_PME EN_ T1_EXC_PME EN_L_EXC_PME
R/W Default R/W R/W R/W R/W 0 0 0 0 Reserved
Description
A one enables the corresponding interrupt status bit for PME# interrupt. A one enables the corresponding interrupt status bit for PME# interrupt A one enables the corresponding interrupt status bit for PME# interrupt.
7.20
Temperature PME# Enable Register Index 60h (If DEV_BANK_EN is 1)
Bit 7-6 5
Name EN_ T8_ EXC_PME
R/W Default R/W R/W 0 0 Reserved
Description
A one enables the corresponding interrupt status bit for PME# interrupt
24
March.,
2008 V0.12P
F75377
4 3 2 1 0 EN_ L7_ EXC_PME EN_ T6_EXC_PME EN_ T5_EXC_PME EN_ T4_EXC_PME EN_T3_EXC_PME R/W R/W R/W R/W R/W 0 0 0 0 0 A one enables the corresponding interrupt status bit for PME# interrupt. A one enables the corresponding interrupt status bit for PME# interrupt A one enables the corresponding interrupt status bit for PME# interrupt. A one enables the corresponding interrupt status bit for PME# interrupt A one enables the corresponding interrupt status bit for PME# interrupt.
7.21
Temperature Interrupt Status Register Index 61h (If DEV_BANK_EN is 0)
Bit
Name
R/W Default
Description A one indicates at least one of TEMP3~TEMP8 temperature sensor has
7
DEV_T_EXC_STS
R
0
exceeded high limit or below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored.
6-3
-
R
0
Reserved A one indicates TEMP2 temperature sensor has exceeded high limit or
2
T2_EXC _STS
R/W
0
below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates TEMP1 temperature sensor has exceeded high limit or
1
T1_EXC _STS
R/W
0
below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates temperature sensor (local temperature) has exceeded the
0
LOCAL_EXC _STS R/W
0
high limit or below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored.
7.22
Temperature Interrupt Status Register Index 61h (If DEV_BANK_EN is 1)
Bit 7-6
Name -
R/W Default R 0 Reserved
Description
A one indicates TEMP8 temperature sensor has exceeded high limit or 5 T8_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates TEMP7 temperature sensor has exceeded high limit or 4 T7_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored.
25
March.,
2008 V0.12P
F75377
A one indicates TEMP6 temperature sensor has exceeded high limit or 3 T6_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates TEMP5 temperature sensor has exceeded high limit or 2 T5_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates TEMP4 temperature sensor has exceeded high limit or 1 T4_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored. A one indicates TEMP3 temperature sensor has exceeded high limit or 0 T3_EXC _STS R/W 0 below the "high limit -hysteresis" limit. Write 1 to clear this bit, write 0 will be ignored.
7.23
Temperature Real Time Status Register Index 62h (If DEV_BANK_EN is 0)
Bit 7 6-3 2
Name DEV_T_EXC T2_EXC
R/W Default R R R 0 0 0
Description Set when one of TEMP3~TEMP8 exceeds the high limit. Clear when the TEMP3~TEMP8 is below the "high limit -hysteresis" temperature. Reserved Set when the TEMP2 exceeds the high limit. Clear when the TEMP2 is below the "high limit -hysteresis" temperature. Set when the TEMP1 exceeds the high limit. Clear when the TEMP1 is below the "high limit -hysteresis" temperature. Set when the local temperature exceeds the high limit. Clear when the local temperature is below the "high limit -hysteresis" temperature.
1
T1_EXC
R
0
0
LOCAL_EXC
R
0
7.24
Temperature Real Time Status Register Index 62h (If DEV_BANK_EN is 1)
Bit 7-6 5
Name T8_EXC
R/W Default R R 0 0 Reserved
Description
Set when the TEMP8 exceeds the high limit. Clear when the TEMP8 is below the "high limit -hysteresis" temperature. Set when the TEMP7 exceeds the high limit. Clear when the TEMP7 is below the "high limit -hysteresis" temperature.
4
T7_EXC
R
0
26
March.,
2008 V0.12P
F75377
3 T6_EXC R 0 Set when the TEMP6 exceeds the high limit. Clear when the TEMP6 is below the "high limit -hysteresis" temperature. Set when the TEMP5 exceeds the high limit. Clear when the TEMP5 is below the "high limit -hysteresis" temperature. Set when the TEMP4 exceeds the high limit. Clear when the TEMP4 is below the "high limit -hysteresis" temperature. Set when the TEMP3 exceeds the high limit. Clear when the TEMP3 is below the "high limit -hysteresis" temperature.
2
T5_EXC
R
0
1
T4_EXC
R
0
0
T3_EXC
R
0
7.25
External Device Bank Select Register Index 65h
Bit 7-1 0
Name DEV_BANK_EN
R/W Default R R/W 0 0 Reserved
Description Set 1 to select external device bank
7.26
Temperature Offset bank select Register -- Index 67h
Bit 7-2
Name Reserved
R/W Default RO 0 --
Description
0: CR68 is local temperature offset. 1-0 OFFSET_SEL R/W 0 1: CR68 is temperature 1 offset. 2: CR68 is temperature 2 offset.
7.27
Temperature Offset Register -- Index 68h
Bit 7
Name -
R/W Default RO 0 0 Reserved
Description
Temperature offset register. The real temperature value will be added by this offset and then will be put into temperature reading (Index 70h~75h). The offset ranges from -64C to +63C.
6-0
T_OFFSET
R/W
7'b011_1111: mean temperature + 63; 7'b000_0001: mean temperature + 1; 7'b000_0000: mean temperature + 0; 7'b111_1111: mean temperature - 1; 7'b100_0000: mean temperature - 64;
27
March.,
2008 V0.12P
F75377
7.28 LOCAL and TEMP1 Limit Hystersis Select Register -- Index 6Ch (If DEV_BANK_EN is 0)
Bit 7-4
Name TEMP1_HYS
R/W Default R/W 0
Description Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ). Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ).
3-0
LOCAL_HYS
R/W
0
7.29
TEMP3 and TEMP4 Limit Hystersis Select Register -- Index 6Ch (If DEV_BANK_EN is 1)
Bit 7-4
Name TEMP4_HYS
R/W Default R/W 0
Description Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ). Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ).
3-0
TEMP3_HYS
R/W
0
7.30
TEMP2 Limit Hystersis Select Register -- Index 6Dh (If DEV_BANK_EN is 0)
Bit 7-4 3-0
Name TEMP2_HYS
R/W Default R R/W 0 0 Reserved
Description
Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ).
7.31
TEMP5 and TEMP6 Limit Hystersis Select Register -- Index 6Dh (If DEV_BANK_EN is 1)
Bit 7-4
Name TEMP6_HYS
R/W Default 0h R/W 0h
Description Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ). Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ).
3-0
TEMP5_HYS
R/W
28
March.,
2008 V0.12P
F75377
7.32 TEMP7 and TEMP8 Limit Hystersis Select Register -- Index 6Eh (If DEV_BANK_EN is 1)
Bit 7-4
Name TEMP8_HYS
R/W Default 0h R/W 0h
Description Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ). Limit hysteresis. (0~15 degree C) Temperature and below the ( boundary - hysteresis ).
3-0
TEMP7_HYS
R/W
7.33
DIODE OPEN Status Register -- Index 6Fh
(If DEV_BANK_EN is 0)
Bit 7-4 4 3 2 1 0
Name DEV_OPEN T2_DIODE_OPEN T1_DIODE_OPEN T0_DIODE_OPEN
R/W Default R R R R R R 0 0 0 0h 0h 0h Reserved
Description
One of the diode of T3~T8 is open or short Reserved External diode 2 is open or short External diode 1 is open or short Internal diode 0 is open or short
7.34
DIODE OPEN Status Register -- Index 6Fh
(If DEV_BANK_EN is 1)
Bit 7-6 5 4 3 2 1 0
Name T8_DIODE_OPEN T7_DIODE_OPEN T6_DIODE_OPEN T5_DIODE_OPEN T4_DIODE_OPEN T3_DIODE_OPEN
R/W Default R R R R R R R 0 0 0 0 0 0 0 Reserved
Description
The diode of T8 is open or short The diode of T7 is open or short The diode of T6 is open or short The diode of T5 is open or short The diode of T4 is open or short The diode of T3 is open or short
29
March.,
2008 V0.12P
F75377
7.35 Temperature Register Index 70h ~ 83h
Address 70h
Attribute RO
Default Value --
Description Local temperature[10:3] reading. The unit of reading is 1C.At the moment of reading this register. (when open or short this byte will return 0) CR71 bit7-bit5 are the Local temperature reading value[2:0]. The unit of reading is 0.125C. CR71 bit 0 is the sign bit of the Local temperature. (when open or short this byte will return 1, "sign bit set to 1") Temperature 1 reading. The unit of reading is 1C.At the moment of reading this register. (PECI TEMP reading Value) CR73 bit7-bit5 are the temperature 1 reading value[2:0]. The unit of reading is 0.125C. CR73 bit 0 is the sign bit of the temperature 1. (when open or short this byte will return 1, "sign bit set to 1") Temperature 2 reading. The unit of reading is 1C.At the moment of reading this register. CR75 bit7-bit5 are the temperature 2 reading value[2:0]. The unit of reading is 0.125C. CR75 bit 0 is the sign bit of the temperature 2. (when open or short this byte will return 1, "sign bit set to 1") T3_read (External Device 0) The unit of reading is 1C.At the moment of reading this register. T4_read (External Device 1) The unit of reading is 1C.At the moment of reading this register. T5_read (External Device 2) The unit of reading is 1C.At the moment of reading this register. T6_read (External Device 3) The unit of reading is 1C.At the moment of reading this register. T7_read (External Device 4) The unit of reading is 1C.At the moment of reading this register. T8_read (External Device 5) The unit of reading is 1C.At the moment of reading this register. Local Temperature sensor high limit. The unit is 1C. (If DEV_BANK_EN is 0) T3 high limit. The unit is 1C. (If DEV_BANK_EN is 1) Temperature sensor 1 high limit. The unit is 1C. (If DEV_BANK_EN is 0) T4 high limit. The unit is 1C. (If DEV_BANK_EN is 1)
71h
RO
--
72h
RO
--
73h
RO
--
74h
RO
--
75h
RO
--
78h 79h 7Ah 7Bh 7C 7D 81h 81h 83h 83h
RO RO RO RO RO RO R/W R/W R/W R/W
------3Ch 55h 55h 55h
30
March.,
2008 V0.12P
F75377
85h 85h 87h 89h 8Bh R/W R/W R/W R/W R/W 55h 55h 55h 55h 55h Temperature sensor 2 high limit. The unit is 1C. (When DEV_BANK_EN is 0) T5 high limit. The unit is 1C. (If DEV_BANK_EN is 1) T6 high limit. The unit is 1C. (If DEV_BANK_EN is 1) T7 high limit. The unit is 1C. (If DEV_BANK_EN is 1) T8 high limit. The unit is 1C. (If DEV_BANK_EN is 1)
7.36
Temperature Filter Select Register -- Index 8Eh
Bit 7-6
Name -
R/W Default R 0 Reserved
Description
The queue time for second filter to quickly update values. 00: 8 times. 5-4 IIR-QUEUR2 R/W 1h 01: 16 times. (default). 10: 24 times. 11: 32 times. The queue time for second filter to quickly update values. 00: 8 times. 3-2 IIR-QUEUR1 R/W 1h 01: 16 times. (default). 10: 24 times. 11: 32 times. The queue time for second filter to quickly update values. 00: 8 times. 1-0 IIR-QUEUR-LOCAL R/W 1h 01: 16 times. (default). 10: 24 times. 11: 32 times.
7.37
FAN PME# Enable Register Index 90h
Bit 7-3 2
Name EN_FAN3_PME
R/W Default R R/W 0 0 Reserved
Description
A one enables the corresponding interrupt status bit for PME# interrupt.
31
March.,
2008 V0.12P
F75377
1 0 EN_FAN2_PME EN_FAN1_PME R/W R/W 0 0 A one enables the corresponding interrupt status bit for PME# interrupt A one enables the corresponding interrupt status bit for PME# interrupt.
7.38
FAN Interrupt Status Register Index 91h
Bit 7-3 2
Name Reserved FAN3_STS
R/W Default RO R/W 0 -Reserved
Description
This bit is set when the fan3 count exceeds the count limit. Write 1 to clear this bit, write 0 will be ignored. This bit is set when the fan2 count exceeds the count limit. Write 1 to clear this bit, write 0 will be ignored. This bit is set when the fan1 count exceeds the count limit. Write 1 to clear this bit, write 0 will be ignored.
1
FAN2_STS
R/W
--
0
FAN1_STS
R/W
--
7.39
FAN Real Time Status Register Index 92h
Bit 7-3 2
Name Reserved FAN3_EXC
R/W Default -RO 0 --
Description Reserved This bit set to high mean that fan3 count can't meet expect count over than SMI time(CR9F) or when duty not zero but fan stop over then 3 sec. This bit set to high mean that fan2 count can't meet expect count over than SMI time(CR9F) or when duty not zero but fan stop over then 3 sec. This bit set to high mean that fan1 count can't meet expect count over than SMI time(CR9F) or when duty not zero but fan stop over then 3 sec.
1
FAN2_EXC
RO
--
0
FAN1_EXC
RO
--
7.40
Fan Type Select Register -- Index 94h
Bit 7-6
Name -
R/W Default R/W 0 Reserved
Description
00: Output PWM mode (push pull) to control fans. 5-4 FAN3_TYPE R/W 2'b10 01 Reserved 10: Output PWM mode (open drain) to control Intel 4-wire fans. 11: Reserved.
32
March.,
2008 V0.12P
F75377
00: Output PWM mode (push pull) to control fans. 3-2 FAN2_TYPE R/W 2'b10 01: Reserved 10: Output PWM mode (open drain) to control Intel 4-wire fans. 11: Reserved. 00: Output PWM mode (push pull) to control fans. 1-0 FAN1_TYPE R/W 2'b10 01: Reserved 10: Output PWM mode (open drain) to control Intel 4-wire fans. 11: Reserved.
7.41
Fan mode Select Register -- Index 96h
Bit 7-6
Name -
R/W Default R/W 0 Reserved 00: Auto fan speed control, different RPM 01: Auto fan speed control, different duty cycle 10, 11: Reserved 00: Auto fan speed control, different RPM. 01: Auto fan speed control, different duty cycle. 10, 11: Reserved 00: Auto fan speed control, different RPM. 01: Auto fan speed control, different duty cycle. 10, 11: Reserved
Description
fan speed will follow different temperature by fan speed will follow different temperature by
5-4
FAN3_MODE
R/W
1h
fan speed will follow different temperature by fan speed will follow different temperature by
3-2
FAN2_MODE
R/W
1h
fan speed will follow different temperature by fan speed will follow different temperature by
1-0
FAN1_MODE
R/W
1h
7.42
Auto Fan1 and Fan2 Boundary Hystersis Select Register -- Index 98h
Bit
Name
R/W Default
Description 0000: Boundary hysteresis. (0~15 degree C)
7-4
FAN2_HYS
R/W
4h
Segment will change when the temperature over the boundary temperature and below the ( boundary - hysteresis ). 0000: Boundary hysteresis. (0~15 degree C)
3-0
FAN1_HYS
R/W
4h
Segment will change when the temperature over the boundary temperature and below the (boundary - hysteresis ).
33
March.,
2008 V0.12P
F75377
7.43 Auto Fan3 and Fan4 Boundary Hystersis Select Register -- Index 99h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
0000: Boundary hysteresis. (0~15 degree C) 3-0 FAN3_HYS R/W 2h Segment will change when the temperature over the boundary temperature and below the (boundary - hysteresis ).
7.44
Fan1~Fan3 Up Fan Duty Change Rate Select Register -- Index 9A
Bit 7-6
Name -
R/W Default R 0h Reserved
Description
Fan3 duty increasing update rate 5-4 FAN3_U_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz Fan2 duty increasing update rate 3-2 FAN2_U_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz Fan1 duty increasing update rate 1-0 FAN1_U_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz
7.45
Fan1~Fan3 Down Fan Duty Change Rate Select Register -- Index 9Bh
Bit 7-6
Name -
R/W Default R 0h Reserved
Description
Fan3 duty decreasing update rate 5-4 FAN3_D_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz
34
March.,
2008 V0.12P
F75377
Fan2 duty decreasing update rate 3-2 FAN2_D_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz Fan1 duty decreasing update rate 1-0 FAN1_D_RATE_SEL R/W 1h 00: 2.5Hz 01: 5Hz (default) 10: 10Hz 11: 20Hz
7.46
FAN1 and FAN2 START UP DUTY-CYCLE/VOLTAGE Index 9Ch
Bit
Name
R/W Default
Description When fan start, the FAN_CTRL2 will increase duty-cycle from 0 to this
7-4
FAN2_MIN_DUTY
R/W
5h
(value x 8) directly. And if fan speed is down, the FAN_CTRL 2 will decrease duty-cycle to 0 when the PWM duty cycle is less than this (value x 4). When fan start, the FAN_CTRL 1 will increase duty-cycle from 0 to this
3-0
FAN1_MIN_DUTY
R/W
5h
(value x 8 directly. And if fan speed is down, the FAN_CTRL 1 will decrease duty-cycle to 0 when the PWM duty cycle is less than this (value x 4).
7.47
FAN3 and FAN4 START UP DUTY-CYCLE/VOLTAGE Index 9Dh
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
When fan start, the FAN_CTRL 3 will increase duty-cycle from 0 to this 3-0 FAN3_MIN_DUTY R/W 5h (value x 8 directly. And if fan speed is down, the FAN_CTRL 3 will decrease duty-cycle to 0 when the PWM duty cycle is less than this (value x 4).
7.48
Fan SMI Time Register -- Index 9Fh
Bit 7-4
Name Reserved
R/W Default --Reservd
Description
35
March.,
2008 V0.12P
F75377
This register determines the time of fan fault. The condition to cause fan fault event is: When PWM_Duty reaches FFh, if the fan speed count can't reach the fan expect count in time. 3-0 FAN_FAULT_TIME R/W ah The unit of this register is 1 second. The default value is 11 seconds. (Set to 0 , means 1 seconds. ; Set to 1, means 2 seconds. Set to 2, means 3 seconds. .... ) Another condition to cause fan fault event is fan stop and the PWM duty is greater than the minimum duty programmed by the register index 9C-9Dh.
7.49
Fan1 Index A0h- AFh
Default Address Attribute Value FAN1 count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN1 count reading (LSB). RPM mode(CR96 bit0=0): FAN1 expect speed count value (MSB), in auto fan mode (CR96 bit1 A2h R/W 8'h00 register is auto updated by hardware. Duty mode(CR96 bit0=1): This byte is reserved byte. RPM mode(CR96 bit0=0): FAN1 expect speed count value (LSB) or expect PWM duty, in auto fan mode this register is auto updated by hardware and read only. A3h R/W 8'h01 Duty mode(CR96 bit0=1): The Value programming in this byte is duty value. In auto fan mode(CR96 bit1 Ex: 5 255 A4h A5h R/W R/W 8'h03 8'hff 0) this register is updated by hardware. 5*100/255 % 100% 0) this Description
A0h
RO
8'h0f
A1h
RO
8'hff
FAN1 full speed count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN1 full speed count reading (LSB).
36
March.,
2008 V0.12P
F75377
7.50 Fan2 Index B0h- BFh
Default Address Attribute Value FAN2 count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN2 count reading (LSB). RPM mode(CR96 bit2=0): FAN2 expect speed count value (MSB), in auto fan mode(CR96 bit3 B2h R/W 8'h00 register is auto updated by hardware. Duty mode(CR96 bit2=1): This byte is reserved byte. RPM mode(CR96 bit2=0): FAN2 expect speed count value (LSB) or expect PWM duty , in auto fan mode this register is auto updated by hardware and read only. B3h R/W 8'h01 Duty mode(CR96 bit2=1): The Value programming in this byte is duty value. In auto fan mode(CR96 bit3 Ex: 5 255 B4h B5h R/W R/W 8'h03 8'hff 0) this register is updated by hardware. 5*100/255 % 100% 0) this Description
B0h
RO
8'h0f
B1h
RO
8'hff
FAN2 full speed count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN2 full speed count reading (LSB).
7.51
Fan3 Index C0h- CFh
Default Address Attribute Value FAN3 count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN3 count reading (LSB). Description
C0h
RO
8'h0F
C1h
RO
8'hff
37
March.,
2008 V0.12P
F75377
RPM mode(CR96 bit4=0): FAN3 expect speed count value (MSB), in auto fan mode(CR96 bit5 C2h R/W 8'h00 register is auto updated by hardware. Duty mode(CR96 bit4=1): This byte is reserved byte. RPM mode(CR96 bit4=0): FAN3 expect speed count value (LSB) or expect PWM duty , in auto fan mode this register is auto updated by hardware and read only. C3h R/W 8'h01 Duty mode(CR96 bit4=1): The Value programming in this byte is duty value. In auto fan mode(CR96 bit5 Ex: 5 255 C4h C5h R/W R/W 8'h03 8'hff 0) this register is updated by hardware. 5*100/255 % 100% 0) this
FAN3 full speed count reading (MSB). At the moment of reading this register, the LSB will be latched. This will prevent from data updating when reading. To read the fan count correctly, read MSB first and followed read the LSB. FAN3 full speed count reading (LSB).
7.52
FAN1 Control Register - Index D0h
Bit 7 6 5 4 3-0
Name FAN1LOAD_BEFORE FAN1_NO_STOP Reserved FAN1_INTP_EN -
R/W Default R/W R/W R/W R/W R 0 0 0 0 0
Description Set 1 that fan speed will keep current temp. status before system re-boot up. Set 1 that FAN1 will not stop but keep at FAN1_MIN_DUTY x 4 Reserved Set 1 will enable the interpolation of the fan expect table. Reserved
7.53
FAN2 Control Register - Index D1h
Bit 7 6 5 4
Name FAN2LOAD_BEFORE FAN2_NO_STOP Reserved FAN2_INTP_EN
R/W Default 0 R/W R/W R/W R/W 0 0 0
Description Set 1 that fan speed will keep current temp. status before system re-boot up. Set 1 that FAN2 will not stop but keep at FAN1_MIN_DUTY x 4 Reserved Set 1 will enable the interpolation of the fan expect table.
38
March.,
2008 V0.12P
F75377
3-0 R 0 Reserved
7.54
FAN3 Control Register - Index D2h
Bit 7 6 5 4 3-0
Name FAN3LOAD_BEFORE FAN3_NO_STOP Reserved FAN3_INTP_EN -
R/W Default 0 R/W R/W R/W R/W R 0 0 0 0
Description Set 1 that fan speed will keep current temp. status before system re-boot up. Set 1 that FAN2 will not stop but keep at FAN1_MIN_DUTY x 4 Reserved Set 1 will enable the interpolation of the fan expect table. Reserved
7.55
FAN Control Register - Index D3h
Bit 7-3 2
Name FAN3_MAX_SEL
R/W Default R R/W 0 0 Reserved
Description
0: fan3 speed will decide by temperature weighting 1: fan3 speed will decide by follow the fastest fan speed 0: fan3 speed will decide by temperature weighting 1: fan3 speed will decide by follow the fastest fan speed 0: fan3 speed will decide by temperature weighting 1: fan3 speed will decide by follow the fastest fan speed
1
FAN2_MAX_SEL
R/W
0
0
FAN1_MAX_SEL
R/W
0
7.56
Fan table bank select - Index D5h
Bit 7-4
Name Reserved
R/W Default R 0 Reserved
Description
0: T0 table and weighting setting 1: T1 table and weighting setting 2: T2 table and weighting setting 3-0 FAN_BANK_SEL R/W 0 ...... ..... 7: T7 table and weighting setting 8: T8 table and weighting setting
39
March.,
2008 V0.12P
F75377
FAN_BANK_SEL=0x00
7.57 FAN T0 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T0_JUMP_HIGH_EN
R/W
1
0
T0_JUMP_LOW_EN
R/W
1
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.58
FAN T0 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 0 to FAN2 weight setting register: 0: T0 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T0 to FAN2 is 1/15 2: Proportion of T0 to FAN2 is 2/15. ..... F: Proportion of T0 to FAN2 is 15/15 Temperature 0 to FAN1 weight setting register: 0: T0 independent with FAN1.
3-0
FAN1_WEIGHT
R/W
0
1: Proportion of T0 to FAN1 is 1/15 2: Proportion of T0 to FAN1 is 2/15. ..... F: Proportion of T0 to FAN1 is 15/15
7.59
FAN T0 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
40
March.,
2008 V0.12P
F75377
Temperature 0 to FAN3 weight setting register: 0: T0 independent with FAN3. 3-0 FAN3_WEIGHT R/W Fh 1: Proportion of T0 to FAN3 is 1/15 2: Proportion of T0 to FAN3 is 2/15. ..... F: Proportion of T0 to FAN3 is 15/15
7.60
FAN T0 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T0 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.61
FAN T0 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T0 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.62
FAN T0 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
41
March.,
2008 V0.12P
F75377
7.63 FAN T0 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.64
FAN T0 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x01
7.65 FAN T1 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T1_JUMP_HIGH_EN
R/W
1
0
T1_JUMP_LOW_EN
R/W
1
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.66
FAN T1 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description
42
March.,
2008 V0.12P
F75377
Temperature 1 to FAN2 weight setting register: 0: T0 independent with FAN2. 7-4 FAN2_WEIGHT R/W 0 1: Proportion of T1 to FAN2 is 1/15 2: Proportion of T1 to FAN2 is 2/15. ..... F: Proportion of T1 to FAN2 is 15/15 Temperature 1 to FAN1 weight setting register: 0: T1 independent with FAN1. 3-0 FAN1_WEIGHT R/W Fh 1: Proportion of T1 to FAN1 is 1/15 2: Proportion of T1 to FAN1 is 2/15. ..... F: Proportion of T1 to FAN1 is 15/15
7.67
FAN T1 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 1 to FAN3 weight setting register: 0: T1 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T1 to FAN3 is 1/15 2: Proportion of T1 to FAN3 is 2/15. ..... F: Proportion of T1 to FAN3 is 15/15
7.68
FAN T1 Control Register 4 - Index D9h
Bit
Name
R/W Default
st
Description The 1 BOUNDARY temperature for T1 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
43
March.,
2008 V0.12P
F75377
7.69 FAN T1 Control Register 5 - Index DAh
Bit
Name
R/W Default
Description
st The 2 BOUNDARY temperature for T1 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.70
FAN T1 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.71
FAN T1 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.72
FAN T1 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description
44
March.,
2008 V0.12P
F75377
7-0 SEC3SPEED R/W 4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section. The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
FAN_BANK_SEL=0x02
7.73 FAN T2 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T2_JUMP_HIGH_EN
R/W
1
0
T2_JUMP_LOW_EN
R/W
1
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.74
FAN T2 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 2 to FAN2 weight setting register: 0: T2 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
Fh
1: Proportion of T2 to FAN2 is 1/15 2: Proportion of T2 to FAN2 is 2/15. ..... F: Proportion of T2 to FAN2 is 15/15 Temperature 2 to FAN1 weight setting register: 0: T2 independent with FAN1.
3-0
FAN1_WEIGHT
R/W
0
1: Proportion of T2 to FAN1 is 1/15 2: Proportion of T2 to FAN1 is 2/15. ..... F: Proportion of T2 to FAN1 is 15/15
45
March.,
2008 V0.12P
F75377
7.75 FAN T2 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 2 to FAN3 weight setting register: 0: T2 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T2 to FAN3 is 1/15 2: Proportion of T2 to FAN3 is 2/15. ..... F: Proportion of T2 to FAN3 is 15/15
7.76
FAN T2 Control Register 4 - Index D9h
Bit
Name
R/W Default
st
Description The 1 BOUNDARY temperature for T2 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.77
FAN T2 Control Register 5 - Index DAh
Bit
Name
R/W Default
Description
st The 2 BOUNDARY temperature for T2 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.78
FAN T2 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description
46
March.,
2008 V0.12P
F75377
The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex: 7-0 SEC1SPEED R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.79
FAN T2 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.80
FAN T2 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x03
7.81 FAN T3 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T3_JUMP_HIGH_EN
R/W
0
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9..
47
March.,
2008 V0.12P
F75377
0 T3_JUMP_LOW_EN R/W 0 Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.82
FAN T3 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 3 to FAN2 weight setting register: 0: T3 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T3 to FAN2 is 1/15 2: Proportion of T3 to FAN2 is 2/15. ..... F: Proportion of T3 to FAN2 is 15/15 Temperature 3 to FAN1 weight setting register: 0: T3 independent with FAN1.
3-0
FAN1_WEIGHT
R/W
0
1: Proportion of T3 to FAN1 is 1/15 2: Proportion of T3 to FAN1 is 2/15. ..... F: Proportion of T3 to FAN1 is 15/15
7.83
FAN T3 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 3 to FAN3 weight setting register: 0: T3 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T3 to FAN3 is 1/15 2: Proportion of T3 to FAN3 is 2/15. ..... F: Proportion of T3 to FAN3 is 15/15
7.84
FAN T3 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
48
March.,
2008 V0.12P
F75377
7-0 BOUND1TEMP R/W 46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
st The 1 BOUNDARY temperature for T3 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7.85
FAN T3 Control Register 5 - Index DAh
Bit
Name
R/W Default
Description
st The 2 BOUNDARY temperature for T3 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.86
FAN T3 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.87
FAN T3 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
49
March.,
2008 V0.12P
F75377
7.88 FAN T3 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x04
7.89 FAN T4 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T4_JUMP_HIGH_EN
R/W
0
0
T4_JUMP_LOW_EN
R/W
0
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.90
FAN T4 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 4 to FAN2 weight setting register: 0: T4 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T4 to FAN2 is 1/15 2: Proportion of T4 to FAN2 is 2/15. ..... F: Proportion of T4 to FAN2 is 15/15
50
March.,
2008 V0.12P
F75377
Temperature 4 to FAN1 weight setting register: 0: T4 independent with FAN1. 3-0 FAN1_WEIGHT R/W 0 1: Proportion of T4 to FAN1 is 1/15 2: Proportion of T4 to FAN1 is 2/15. ..... F: Proportion of T4 to FAN1 is 15/15
7.91
FAN T4 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 4 to FAN3 weight setting register: 0: T4 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T4 to FAN3 is 1/15 2: Proportion of T4 to FAN3 is 2/15. ..... F: Proportion of T4 to FAN3 is 15/15
7.92
FAN T4 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T4 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.93
FAN T4 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T4 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
51
March.,
2008 V0.12P
F75377
7.94 FAN T4 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.95
FAN T4 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.96
FAN T4 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x05
7.97 FAN T5 Control Register 1 - Index D6h
Bit
Name
R/W Default
Description
52
March.,
2008 V0.12P
F75377
7-3 R 0 Reserved Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
1
T5_JUMP_HIGH_EN
R/W
0
0
T5_JUMP_LOW_EN
R/W
0
7.98
FAN T5 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 5 to FAN2 weight setting register: 0: T5 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T5 to FAN2 is 1/15 2: Proportion of T5 to FAN2 is 2/15. ..... F: Proportion of T5 to FAN2 is 15/15 Temperature 5 to FAN1 weight setting register: 0: T5 independent with FAN1.
3-0
FAN1_WEIGHT
R/W
0
1: Proportion of T5 to FAN1 is 1/15 2: Proportion of T5 to FAN1 is 2/15. ..... F: Proportion of T5 to FAN1 is 15/15
7.99
FAN T5 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 5 to FAN3 weight setting register: 0: T5 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T5 to FAN3 is 1/15 2: Proportion of T5 to FAN3 is 2/15. ..... F: Proportion of T5 to FAN3 is 15/15
53
March.,
2008 V0.12P
F75377
7.100 FAN T5 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T5 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.101 FAN T5 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T5 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.102 FAN T5 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.103 FAN T5 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description
54
March.,
2008 V0.12P
F75377
7-0 SEC2SPEED R/W d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section. The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7.104 FAN T5 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x06
7.105 FAN T6 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T6_JUMP_HIGH_EN
R/W
0
0
T6_JUMP_LOW_EN
R/W
0
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.106 FAN T6 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 6 to FAN2 weight setting register: 0: T6 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T6 to FAN2 is 1/15 2: Proportion of T6 to FAN2 is 2/15. ..... F: Proportion of T6 to FAN2 is 15/15
55
March.,
2008 V0.12P
F75377
Temperature 6 to FAN2 weight setting register: 0: T6 independent with FAN1. 3-0 FAN1_WEIGHT R/W 0 1: Proportion of T6 to FAN1 is 1/15 2: Proportion of T6 to FAN1 is 2/15. ..... F: Proportion of T6 to FAN1 is 15/15
7.107 FAN T6 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 6 to FAN3 weight setting register: 0: T6 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T6 to FAN3 is 1/15 2: Proportion of T6 to FAN3 is 2/15. ..... F: Proportion of T6 to FAN3 is 15/15
7.108 FAN T6 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T6 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.109 FAN T6 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T6 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
56
March.,
2008 V0.12P
F75377
7.110 FAN T6 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.111 FAN T6 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.112 FAN T6 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x07
7.113 FAN T7 Control Register 1 - Index D6h
Bit
Name
R/W Default
Description
57
March.,
2008 V0.12P
F75377
7-3 R 0 Reserved Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
1
T7_JUMP_HIGH_EN
R/W
0
0
T7_JUMP_LOW_EN
R/W
0
7.114 FAN T7 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 7 to FAN2 weight setting register: 0: T7 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T7 to FAN2 is 1/15 2: Proportion of T7 to FAN2 is 2/15. ..... F: Proportion of T7 to FAN2 is 15/15 Temperature 7 to FAN1 weight setting register: 0: T7 independent with FAN1.
3-0
FAN1_WEIGHT
R/W
0
1: Proportion of T7 to FAN1 is 1/15 2: Proportion of T7 to FAN1 is 2/15. ..... F: Proportion of T7 to FAN1 is 15/15
7.115 FAN T7 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 7 to FAN3 weight setting register: 0: T7 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T7 to FAN3 is 1/15 2: Proportion of T7 to FAN3 is 2/15. ..... F: Proportion of T7 to FAN3 is 15/15
58
March.,
2008 V0.12P
F75377
7.116 FAN T7 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T7 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.117 FAN T7 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T7 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
7.118 FAN T7 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.119 FAN T7 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description
59
March.,
2008 V0.12P
F75377
7-0 SEC2SPEED R/W d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section. The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7.120 FAN T7 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
FAN_BANK_SEL=0x08
7.121 FAN T8 Control Register 1 - Index D6h
Bit 7-3
Name -
R/W Default R 0 Reserved
Description
1
T8_JUMP_HIGH_EN
R/W
0
0
T8_JUMP_LOW_EN
R/W
0
Set 1 that FAN speed will jump to SEC1SPEED when temperature over BOUND1TEMP CRD9. Set 0 that FAN1 speed will raise up to SEC1SPEED by slop value (CR9A) when temperature over BOUND1TEMP CRD9.. Set 1 that FAN speed will jump to SEC2SPEED when temperature under BOUND1TEMP Hystersis. Set 0 that FAN speed will decrease to SEC2SPEED by slop value (CR9B) when temperature under FAN1 Boundary Hystersis.
7.122 FAN T8 Control Register 2 - Index D7h
Bit
Name
R/W Default
Description Temperature 8 to FAN2 weight setting register: 0: T8 independent with FAN2.
7-4
FAN2_WEIGHT
R/W
0
1: Proportion of T8 to FAN2 is 1/15 2: Proportion of T8 to FAN2 is 2/15. ..... F: Proportion of T8 to FAN2 is 15/15
60
March.,
2008 V0.12P
F75377
Temperature 8 to FAN1 weight setting register: 0: T8 independent with FAN1. 3-0 FAN1_WEIGHT R/W 0 1: Proportion of T8 to FAN1 is 1/15 2: Proportion of T8 to FAN1 is 2/15. ..... F: Proportion of T8 to FAN1 is 15/15
7.123 FAN T8 Control Register 3 - Index D8h
Bit 7-4
Name -
R/W Default R 0 Reserved
Description
Temperature 8 to FAN3 weight setting register: 0: T8 independent with FAN3. 3-0 FAN3_WEIGHT R/W 0 1: Proportion of T8 to FAN3 is 1/15 2: Proportion of T8 to FAN3 is 2/15. ..... F: Proportion of T8 to FAN3 is 15/15
7.124 FAN T8 Control Register 4 - Index D9h
Bit
Name
R/W Default
Description
st The 1 BOUNDARY temperature for T8 in temperature mode. When temperature is exceed this boundary, FAN expect value will load from segment 1 register (index DC)h.
7-0
BOUND1TEMP
R/W
46h (70'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 2 register (index DDh).
7.125 FAN T8 Control Register 5 - Index DAh
Bit
Name
R/W Default
st
Description The 2 BOUNDARY temperature for T8 in temperature mode. When temperature is exceed this boundary, FAN1 expect value will load from segment 2 register (index DDh).
7-0
BOUND2TEMP
R/W
28h (40'C) When temperature is below this boundary - hysteresis, FAN expect value will load from segment 3 register (index DEh).
61
March.,
2008 V0.12P
F75377
7.126 FAN T8 Control Register 6 - Index DCh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section. Ex:
7-0
SEC1SPEED
R/W
FFh (100%) 100%:full speed: User must set this register to 0. 60% full speed: (100-60)*32/60, so user must program 21 to this reg. X% full speed: The value programming in this byte is (100-X)*32/X 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
32 Expect speed = x Fullspeeed 32+ value
7.127 FAN T8 Control Register 7 - Index DDh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC2SPEED
R/W
d9h (85%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
7.128 FAN T8 Control Register 8 - Index DEh
Bit
Name
R/W Default
Description The meaning of this register is depending on the FAN_MODE(CR96) 2'b00: The value that set in this byte is the relative expect fan speed % of the full speed in this temperature section.
7-0
SEC3SPEED
R/W
4ch (30%) 2'b01: The value that set in this byte is mean the expect PWM duty-cycle in this temperature section.
62
March.,
2008 V0.12P
F75377
8. Electrical characteristic
8.1 Absolute Maximum Ratings
PARAMETER Power Supply Voltage Input Voltage Operating Temperature Storage Temperature RATING -0.5 to 5.5 -0.5 to VCC+0.5 0 to 70 -55 to 150 UNIT V V C C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device
8.2 DC Characteristics
(TA = 0 C to 70 C, VCC = 3.3V 10%, VSS = 0V ) Parameter Temperature Error, Remote Diode
o
Conditions 60 C < TD < 100 C, VCC = 3.0V to 3.6V -40 oC

o
MIN
TYP 1 1 1
MAX
Unit
o
C
3 3 3.6
o
Temperature Error, Local Diode Supply Voltage range Average operating supply current Standby supply current Resolution Power on reset threshold Diode source current
0 C < TA < 100 C, VCC = 3.0V to 3.6V 3.0
o
o
C
3.3 1 480 0.125 2.2
V mA uA
o
C
2.4
V uA uA
High Level Low Level
95 10
63
March.,
2008 V0.12P
F75377
(TA = 0 C to 70 C, VCC = 3.3V 10%, VSS = 0V) PARAMETER SYM. MIN. TYP. MAX. UNIT CONDITIONS
IN ts5v /OD12 - TTL level bi-directional pin with sink capability of 12 mA and schmitt-trigger level input with 5V tolerance Input Low Voltage Input High Voltage Output Low Current Input High Leakage Input Low Leakage VIL VIH IOL ILIH ILIL 2.0 10 12 +1 -1 0.8 V V mA A A VCC = 3.3 V VCC = 3.3 V VOL = 0.4V VIN = VCC VIN = 0V
IN ts5v /O12 - TTL level bi-directional pin with source-sink capability of 12 mA and schmitt-trigger level input with 5V tolerance Input Low Threshold Voltage Input High Threshold Voltage Output Low Current Output High Current Input High Leakage Input Low Leakage INts5v VtVt+ IOL IOH ILIH ILIL 0.5 1.6 10 0.8 2.0 12 -12 -10 +1 -1 1.1 2.4 V V mA mA A A VCC = 3.3 V VCC = 3.3 V VOL = 0.4 V VOH = 2.4V VIN = VCC VIN = 0V
TTL level Schmitt-triggered input pin with 5V tolerance VtVt+ ILIH ILIL 0.5 1.6 0.8 2.0 1.1 2.4 +1 -1 V V A A VCC = 3.3V VCC = 3.3V VIN = VCC VIN = 0 V
Input Low Threshold Voltage Input High Threshold Voltage Input High Leakage Input Low Leakage
I lv /OD8-S1 - Low voltage level bidirection pin with 8 mA source capability (Internal pull-down sink 1 mA) Input Low Threshold Voltage Input High Threshold Voltage Input High Leakage VlvtVlvt+ ILIHlv 0.4 1.0 +1 V V A VCC = 3.3V VCC = 3.3V VIN = VCC
I lv /OD8 - Low voltage level bidirection pin with 8 mA source capability Input Low Threshold Voltage Input High Threshold Voltage Input High Leakage Input Low Leakage VlvtVlvt+ ILIHlv ILILlv 0.4 1.0 +1 -1 V V A A VCC = 3.3V VCC = 3.3V VIN = VCC VIN = 0 V
64
March.,
2008 V0.12P
F75377
8.3 AC Characteristics
t SCL t t R R
SCL
t HD;SDA
t SU;DAT t SU;STO
SDA IN VALID DATA
t HD;DAT
SDA OUT
Serial Bus Timing Diagram
Serial Bus Timing PARAMETER SCL clock period Start condition hold time Stop condition setup-up time DATA to SCL setup time DATA to SCL hold time SCL and SDA rise time SYMBOL t-SCL tHD;SDA tSU;STO tSU;DAT tHD;DAT tR MIN. 2 300 300 50 5 MAX. 300 UNIT uS nS nS nS nS nS
9. Ordering Information
Part Number F75377R Package Type 20 pin SSOP Green Package Production Flow Commercial, 0C to +70C
65
March.,
2008 V0.12P
F75377
10. Package Dimensions
Feature Integration Technology Inc.
Headquaters 7F, No 31, Shintai Rd., Jubei City, Hsinchu 302, Taiwan, R.O.C. TEL : 886-3-6562727 FAX : 886-3-6560537 www: http://www.fintek.com.tw
Taipei Office Bldg K4, 7F, No. 700, Chung Cheng Rd., Chungho City, Taipei 235, Taiwan, R.O.C. TEL : 886-2-8227-8027 FAX : 886-2-8227-8037
Please note that all datasheet and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this datasheet belong to their respective owner 66 March.,
2008 V0.12P

▲Up To Search▲

Price & Availability of F75377

	To Download F75377 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .