STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
LIST OF TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
- Backplane Transmit Interface (4 pins) ......................................... 19
- Backplane Receive Interface (4 pins) .......................................... 21
- Transmit Line Interface (6 pins) ................................................... 23
- Receive Line Interface (4 pins).................................................... 24
- Timing Options Control (5 pins) ................................................... 24
- Analog Support Circuitry (4 pins) ................................................. 25
- JTAG (IEEE 1149.1) Boundary Scan Test Interface (5 pins)........ 26
- Microprocessor Interface (23 pins) .............................................. 26
- Power and Ground (25 pins)........................................................ 28
Table 10 - PM4351-RI Pin Summary............................................................ 30
Table 11 PM4351-NI Pin Summary .............................................................. 30
Table 12 - External Component Descriptions ............................................... 34
Table 13 - Typical Input Return Loss at Receiver ......................................... 35
Table 14 - Termination Resistors, Transformer Ratios and TRL ................... 35
Table 15 - E1-FRMR Framing States............................................................ 44
Table 16 - Normal Mode Register Memory Map........................................... 66
Table 17 - TJAT FIFO Output Clock Source ................................................ 90
Table 18 - TJAT PLL Source......................................................................... 91
Table 19 - Transmit Timing Options Summary.............................................. 91
Table 20 - Loss of Signal Thresholds.......................................................... 109
Table 21 - Receive Backplane NXDS0 Mode Selection ............................. 137
Table 22 - Receive Backplane Rate............................................................ 139
PROPRIETARY AND CONFIDENTIAL
xvi
PMC [ PMC-SIERRA, INC ]
