PM5362TUPP-PLUS
DATA SHEET
PMC-951010
ISSUE 6
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR / PERFORMANCE MONITOR
Register 0EH: RTOP #3 and RTTB #3 Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
ALGO2
PER5
0
0
X
X
0
1
1
0
Unused
Unused
RDI10
PDI[2]
PDI[1]
PDI[0]
R/W
R/W
R/W
R/W
This register configures the operation of RTOP #3 and RTTB #3.
PDI[2:0]:
The PDI[2:0] bits specifies the code used to convey tributary path defect
indication (PDI-V) in the V5 byte (for non-TU3 payloads) or the C2 byte (for
TU3 payloads). For TU3 payloads, the PDI[2] bit is sign extended to form the
byte value used for the PDI-V detection.
RDI10:
The RDI10 bit controls the number of times the tributary path RDI, RFI or the
extended RDI code is filtered before being accepted. When RDI10 is set
high, the RDI bit, the RFI bit or the extended RDI code is filtered for ten
occurrences. When RDI10 is set low, the RDI bit, the RFI bit or the extended
RDI code is filtered for five occurrences.
PER5:
The PER5 bit controls the number of identical tributary path trace messages
needed for the message to become accepted. When PER5 is set high, a
messages is accepted when it is received unchanged five times. When PER5
is set low, the message is accepted after three identical repetitions.
ALGO2:
The ALGO2 bit controls the algorithm used to detect trail trace identifier
unstable alarms. When ALGO2 is set high, a counter starts on the first
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98
PMC [ PMC-SIERRA, INC ]
