PM5316 Datasheet, PDF (217/491 Pages) PMC-Sierra, Inc – Quad Channel 155 Mbit/s SONET/SDH Framer and Aligner

SONET/SDH Payload Extractor/Aligner (SPECTRA-4x155)
Production
Register 100AH: Drop Bus STM-1 #2 AU-3 #3 Select
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
R/W
R/W
R/W
R/W
Function
Unused
Unused
Unused
Unused
STM1SEL[1]
STM1SEL[0]
AU-3SEL[1]
AU-3SEL[0]
Default
X
X
X
X
0
1
1
0
This is a configuration register for the TSI operation at the Telecom Drop bus. This register
selects an STS-1 (STM-0/AU-3) or equivalent of the receive stream for insertion in time-slot
STM-1 #2 AU-3 #3 of the Drop bus. The default values of STM1SEL[1:0] and AU-3SEL[1:0] for
registers 0D01H to 0D0CH enable a straight-through connection of the receive stream to the Drop
bus.
AU-3SEL[1:0]
The AU-3SEL[1:0] bits select one of three STS-1 (STM-0/AU-3) streams in the STS-3
(STM-1) receive stream selected by the STM1SEL[1:0] bits. The AU-3SEL[1:0] options are
summarized in the table below.
AU-3SEL[1:0]
00
01
10
11
AU-3 receive stream #
STS-1 (STM-0/AU-3) #1
STS-1 (STM-0/AU-3) #2
STS-1 (STM-0/AU-3) #3
Reserved
STM1SEL[1:0]
The STM1SEL[1:0] bits select the STS-3 (STM-1) receive stream as summarized in the table
below.
STM1SEL[1:0]
00
01
10
11
STM-1 receive stream #
STS-3 (STM-1) #1
STS-3 (STM-1) #2
STS-3 (STM-1) #3
STS-3 (STM-1) #4
Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use
198
Document ID: PMC-1990822, Issue 4