STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
xvi
LIST OF TABLES
Table 1
- Backplane Transmit Interface (4 pins) ......................................... 19
Table 2
- Backplane Receive Interface (4 pins).......................................... 21
Table 3
- Transmit Line Interface (6 pins) ................................................... 23
Table 4
- Receive Line Interface (4 pins).................................................... 24
Table 5
- Timing Options Control (5 pins) ................................................... 24
Table 6
- Analog Support Circuitry (4 pins) ................................................. 25
Table 7
- JTAG (IEEE 1149.1) Boundary Scan Test Interface (5 pins)........ 26
Table 8
- Microprocessor Interface (23 pins) .............................................. 26
Table 9
- 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