PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
DATASHEET
S/UNI-622-MAX
PMC-1980589
ISSUE 5
SATURN USER NETWORK INTERFACE (622-MAX)
the K2 byte for three consecutive frames. When LRDIDET is set to logic zero, line RDI is
declared when a 110 binary pattern is detected in bits 6, 7 and 8 of the K2 byte for five
consecutive frames.
AISDET:
The AISDET bit determines the line AIS alarm detection algorithm. When AISDET is set to
logic one, line AIS is declared when a 111 binary pattern is detected in bits 6, 7 and 8 of the
K2 byte for three consecutive frames. When AISDET is set to logic zero, line AIS is declared
when a 111 binary pattern is detected in bits 6, 7 and 8 of the K2 byte for five consecutive
frames.
ALLONES:
The ALLONES bit controls automatically forcing the SONET/SDH frame passed to
downstream blocks to logical all-ones whenever line AIS is detected. When ALLONES is set
to logic one, the SONET/SDH frame is forced to logic one immediately when the line AIS
alarm is declared. When line AIS is removed, the downstream data stream is immediately
returned to carrying the receive data. When ALLONES is set to logic zero, the downstream
data stream always carry the receive data regardless of the line AIS alarm state.
BIPWORD:
The BIPWORD bit controls the accumulation of B2 errors. When BIPWORD is logic one, the
B2 error event counter is incremented only once per frame whenever one or more B2 bit
errors occur during that frame. When BIPWORD is logic zero, the B2 error event counter is
increment for each and every B2 bit error that occurs during that frame.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
101
PMC [ PMC-SIERRA, INC ]
