...exible interrupt capabilities - two independent/programmable interrupt sources with auto-vectoring Selectable 24 and 32 channel operation Pr...four bits wide and begins at the start of each valid channel. 14 15-22 23 24 VSS Ground.
D0-D7 Bi...
Description
ISO-CMOS ST-BUS FAMILY ST-BUS Parallel Access Circuit ISO-CMOS ST-BUS⑩ FAMILY ST-BUS Parallel Access Circuit
...exible interrupt capabilities - two independent/programmable interrupt sources with auto-vectoring Selectable 24 and 32 channel operation Pr...four bits wide and begins at the start of each valid channel. 14 15-22 23 24 VSS Ground.
D0-D7 Bi...
Description
ISO-CMOS ST-BUS FAMILY ST-BUS Parallel Access Circuit ISO-CMOS ST-BUS⑩ FAMILY ST-BUS Parallel Access Circuit
...te circuit initialization takes two frame periods. Resetting the device disables the output drivers of the microprocessor interface and DSTo...four threshold levels available correspond to the first, fifth, ninth and sixteenth step of the firs...
Description
PCM Conference Circuit (PCC) Preliminary Information
...te circuit initialization takes two frame periods. Initialization disables the output drivers of the microprocessor interface and DSTo. Over...four threshold levels available correspond to the first, fifth, ninth and sixteenth step of the firs...
Description
PCM Conference Circuit (PCC) Preliminary Information
... ESF modes of operation One and two second timers Supports bit-oriented and message-oriented data transfer over the Facility Data Link (FDL)...four bit counters are used to record framing error events (FE) and severely errored framing events (...
Description
ISO-CMOS ST-BUS FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC)
...nnel bits, instead of the usual two bits, to be routed to and from the S-interface B1 timeslot. When active, marks are transmitted in the S-...four wire, full duplex, time division multiplexed transmission facility which exchanges information ...
Description
CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit CMOS ST-BUS FAMILY Subscriber Network Interface Circuit
...nnel bits, instead of the usual two bits, to be routed to and from the S-interface B1 timeslot. When active, marks are transmitted in the S-...four wire, full duplex, time division multiplexed transmission facility which exchanges information ...
Description
CMOS ST-BUS FAMILY Subscriber Network Interface Circuit Preliminary Information
...er via the microprocessor port. two 19 byte deep FIFOs, one for transmit and one for receive, are provided to buffer the data. The HDLC bloc...four wire, full duplex, time division multiplexed transmission facility which exchanges information ...
Description
CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit Preliminary Information CMOS ST-BUS FAMILY Subscriber Network Interface Circuit
...er via the microprocessor port. two 19 byte deep FIFOs, one for transmit and one for receive, are provided to buffer the data. The HDLC bloc...four wire, full duplex, time division multiplexed transmission facility which exchanges information ...
Description
CMOS ST-BUS FAMILY Subscriber Network Interface Circuit Preliminary Information
...hown in Figure 3. Between these two flags, a frame contains the data and the frame check sequence (FCS). FLAG One Byte DATA FIELD FCS FLAG O...four data bytes (minimum for a valid frame).
Flag: The flag is a unique pattern of 8 bits (011111...
Description
ISO-CMOS ST-BUS FAMILY HDLC Protocol Controller ISO-CMOS ST-BUS⑩ FAMILY HDLC Protocol Controller