S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Released
PERSIST
The path far end receive failure alarm persistence bit (PERSIST) controls the persistence of
the RDI asserted into the transmit stream. When PERSIST is a logic one, the RDI code
inserted into the transmit stream as a result of consequential actions is asserted for a
minimum of 20 frames in non-enhanced RDI mode, or the last valid RDI code before an
idle code (idle codes are when bits 5,6,7 are 000, 001, or 011) is asserted for 20 frames in
enhanced RDI mode. When PERSIST is logic zero, the transmit RDI code changes
immediately based on received alarm conditions.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
191
PMC [ PMC-SIERRA, INC ]
