STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
Figure 47 - CRCE Count vs. BER (T1 ESF mode)....................................... 427
Figure 48 - CRCE Count vs. BER (T1 SF mode)......................................... 427
Figure 49 - Boundary Scan Architecture ...................................................... 428
Figure 50 - TAP Controller Finite State Machine .......................................... 430
Figure 51 - Input Observation Cell (IN_CELL) ............................................. 435
Figure 52 - Output Cell (OUT_CELL)........................................................... 436
Figure 53 - Bidirectional Cell (IO_CELL)...................................................... 436
Figure 54 - Layout of Output Enable and Bidirectional Cells........................ 437
Figure 55 - Microprocessor Read Access Timing......................................... 443
Figure 56 - Microprocessor Write Access Timing......................................... 445
Figure 57 - Backplane Transmit Input Timing Diagram ................................ 447
Figure 58 - Backplane Transmit Output Timing Diagram ............................. 448
Figure 59 - Backplane Receive Input Timing Diagram................................. 450
Figure 60 - Backplane Receive Output Timing Diagram .............................. 451
Figure 61 - Digital Receive Interface Timing Diagram.................................. 453
Figure 62 - Digital Transmit Interface Timing Diagram ................................. 454
Figure 63 - JTAG Port Interface Timing........................................................ 456
PROPRIETARY AND CONFIDENTIAL
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PMC [ PMC-SIERRA, INC ]
