
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
299
PAISPTRCFG[1:0]
The path AIS pointer configuration (PAISPTRCFG[1:0]) bits define the AIS-P defect.
When PAISPTRCFG[1:0] is set to
00b
, an AIS-P defect is declared when the pointer is in
the AIS state and an AIS-P defect is removed when the pointer is not in the AIS state. When
PAISPTRCFG[1:0] is set to
01b
, an AIS-P defect is declared when the pointer or any of the
concatenated pointers is in the AIS state and an AIS-P defect is removed when the pointer
and all the concatenation pointers are not in the AIS state. When PAISPTRCFG[1:0] is set
to
10b
, an AIS-P defect is declared when the pointer and all the concatenated pointers are in
the AIS state and an AIS-P defect is removed when the pointer or any of the concatenation
pointers is not in the AIS state. For slave STS-1/STM0 slices, the PAISPTRCFG[1:0] bits
should be left at
00b
; otherwise, AIS-P could be declared unexpectedly on non-master
timeslots.
PLOPTREND
The path loss of pointer removal (PLOPTREND) bit controls the removal of a LOP-P defect
when an AIS-P defect is declared. When PLOPTREND is set to logic 1, a LOP-P defect is
terminated when an AIS-P defect is declared. When PLOPTREND is set to logic 0, a LOP-
P defect is not terminated when an AIS-P defect is declared.
TPRCPEN
The transmit path ring control port enable (TPRCPEN) bit enables the TRCP port. When
TPRPEN is set to logic 1, ERDI-P and REI-P insertion indication are extracted from the
TRCP port. When TRCPEN is set to logic 0, ERDI-P and REI-P insertion indication are
derived from the defect detected on the receive data stream.
PERDI22
The path enhance remote defect indication (PERDI22) bit selects the path ERDI
persistence. When PERDI22 is set to logic 1, a new path ERDI indication is transmitted on
TPERDIINS[2:0] for at least 20 frames. When PERDI22 is set to logic 0, a new path ERDI
indication is transmitted for at least 10 frames.
RDIEN
The path remote defect indication enable (RDIEN) bit selects between the 1 bit RDI code
and the 3 bits ERDI code. When PRDIEN is set to logic 1, the 1 bit RDI code is
transmitted. When PRDIEN is set to logic 0, the 3 bit ERDI code is transmitted.