PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 113

• 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 4
R: Fixed Stuff bit - set to logic ‘0’ or ‘1’
C: Stuff Control bit - set to logic ‘1’ for stuff indication
S: Stuff Opportunity bit - when stuff control bit is ‘0’, stuff opportunity is I bit
O: Overhead
I: E1 payload information
The RTDM buffers the tributary synchronous payload envelope bytes of the
incoming tributaries in individual FIFOs to accommodate tributary pointer
justifications.
The RTDM performs majority voting on the tributary stuff control (C1, C2) bits. If
the majority of each set of the stuff control bits indicate a stuff operation, then the
associated stuff opportunity bit (S1, S2) will not carry T1 or E1 payload.
C
C
C
32 bytes – 8I
32 bytes – 8I
31 bytes – 8I
32 bytes - 8I
1
1
1
C
S
C
C
2
2
2
2
- Asynchronous E1 Tributary Mapping
I I I I I I I
RRRRRS
OOOORR
OOOORR
V5
Z6
Z7
J2
R
R
R
R
R
ISSUE 1
1
101
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
AND M13 MULTIPLEXER
PM5366 TEMAP-84