STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PMC-Sierra, Inc.
105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604 .415.6000
PM4351
COMET
COMBINED E1/T1
TRANSCEIVER/FRAMER
DATA SHEET
ISSUE10: NOVEMBER 2000
STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PMC-Sierra, Inc.
105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604 .415.6000
STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
i
CONTENTS
1
FEATURES .............................................................................................. 1
1.1
Receiver section:........................................................................... 2
1.2
Transmitter section:....................................................................... 4
2
APPLICATIONS ....................................................................................... 6
3
REFERENCES......................................................................................... 7
4
APPLICATION EXAMPLE.......................................................................11
5
BLOCK DIAGRAM ................................................................................. 13
6
DESCRIPTION ...................................................................................... 14
7
PIN DIAGRAMs...................................................................................... 17
8
PIN DESCRIPTION................................................................................ 19
9
FUNCTIONAL DESCRIPTION............................................................... 32
9.1
Receive Interface ........................................................................ 32
9.2
Clock and Data Recovery (CDRC) .............................................. 35
9.3
T1 Framer ................................................................................... 38
9.4
E1 Framer ................................................................................... 39
9.5
T1 Inband Loopback Code Detector (IBCD) ............................... 47
9.6
T1 Pulse Density Violation Detector (PDVD)............................... 47
9.7
Performance Monitor Counters (PMON) ..................................... 47
9.8
T1 Bit Oriented Code Detector (RBOC) ...................................... 48
9.9
HDLC Receiver (RDLC) .............................................................. 48
9.10 T1 Alarm Integrator (ALMI).......................................................... 49
9.11 Receive Elastic Store (RX-ELST) ................................................ 50
STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
ii
9.12 Receive Jitter Attenuator (RJAT) ................................................. 51
9.13 Signaling Extractor (SIGX) .......................................................... 51
9.14 Receive Per-channel Serial Controller (RPSC) ........................... 52
9.15 T1 Signaling Aligner (SIGA)......................................................... 52
9.16 T1 Basic Transmitter (XBAS) ...................................................... 52
9.17 E1 Transmitter (E1-TRAN) .......................................................... 53
9.18 Transmit Elastic Store (TX-ELST) ............................................... 53
9.19 Transmit Per-Channel Serial Controller (TPSC).......................... 54
9.20 T1 Inband Loopback Code Generator (XIBC) ............................. 54
9.21 T1 Bit Oriented Code Generator (XBOC).................................... 55
9.22 HDLC Transmitters...................................................................... 55
9.23 T1 Automatic Performance Report Generation ........................... 56
9.24 Pulse Density Enforcer (XPDE)................................................... 57
9.25 Pseudo Random Pattern Generation and Detection ................... 57
9.26 Transmit Jitter Attenuator (TJAT)................................................. 57
9.27 Timing Options (TOPS) ............................................................... 62
9.28 Line Transmitter........................................................................... 62
9.29 Backplane Receive Interface (BRIF) ........................................... 63
9.30 Backplane Transmit Interface (BTIF)........................................... 64
9.31 JTAG Test Access Port................................................................ 65
9.32 Microprocessor Interface (MPIF)................................................. 65
10
REGISTER DESCRIPTION ................................................................... 66
10.1 Normal Mode Register Memory Map........................................... 66
11
NORMAL MODE REGISTER DESCRIPTION ....................................... 75
STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
iii
12
TEST FEATURES DESCRIPTION ...................................................... 349
12.1 Test Mode 0............................................................................... 351
12.2 JTAG Test Port .......................................................................... 353
13
FUNCTIONAL TIMING......................................................................... 356
13.1 Transmit Backplane Interface.................................................... 356
13.2 Receive Backplane Interface..................................................... 362
14
OPERATION ........................................................................................ 367
14.1 Configuring the COMET from Reset.......................................... 367
14.2 Using the Internal HDLC Transmitters....................................... 373
14.2.1 Automatic transmission mode using interrupts: .............. 374
14.2.2 TDPR Interrupt Routine: ................................................. 375
14.2.3 Automatic transmission mode using polling:................... 376
14.3 Using the Internal HDLC Receivers........................................... 377
14.4 T1 Automatic Performance Report Format................................ 379
14.5 Using the Transmit Line Pulse Generator ................................. 381
14.6 Using the Line Receiver ............................................................ 401
14.6.1 T1 Performance Monitor Mode........................................411
14.7 Using the Test Pattern Generator.............................................. 414
14.7.1 Common Test Patterns ................................................... 415
14.8 Using the Loopback Modes....................................................... 417
14.8.1 Line Loopback ................................................................ 417
14.8.2 Payload Loopback .......................................................... 418
14.8.3 Diagnostic Digital Loopback ........................................... 419
14.8.4 Per-Channel Loopback................................................... 420
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