PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 192

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
PROPRIETARY AND CONFIDENTIAL
Table 23
Table 24
The method for transferring DS3 link rate information across the SBI passes the
encoded count of DS3 clocks between 2KHz SAC1FP/SDC1FP pulses in the
same method used for T1/E1 tributaries, but does not pass any phase
information. The other difference from T1/E1 link rate is that ClkRate[1:0]
indicates whether the nominal number of clocks are generated or if four fewer or
four extra clocks are generated during the SAC1FP/SDC1FP period. The format
of the DS3 link rate octet is shown in Table 25. This is passed across the SBI via
the Linkrate octet which follows the H3 octet in the column, see Table 31. Table
26 shows the encoding of the clock count, ClkRate[1:0], passed in the link rate
octet.
SDC1FP
SREFCLK
T1/E1 CLK
Link Rate Octet
T1/E1 Format
“00” – Nominal
“01” – Fast
“1x” – Slow
ClkRate[1:0]
- SBI T1/E1 Link Rate Information
- SBI T1/E1 Clock Rate Encoding
ISSUE 1
T1 Clocks / 2KHz
Bit #
772
773
771
ALM
7
Clock Count
• • •
• • •
• • •
180
6
0
E1 Clocks / 2 KHz
ClkRate[1:0]
1024
1025
1023
5:4
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
Phase[3:0]
AND M13 MULTIPLEXER
PM5366 TEMAP-84
3:0
Phase