PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Diag_PAIS :
When set high, the Diag_PAIS bit forces the SVCA to insert path AIS in the selected outgoing
stream for at least three consecutive frames. AIS is inserted by writing an all ones pattern in
the transport overhead bytes H1, H2, and H3, as well as in the entire STS synchronous
payload envelope. The first frame after PAIS negates will contain a new data flag in the
transport overhead H1 byte.
Diag_FifoAISDis :
When set high, the Diag_FifoAISDis bit forces the SVCA not to insert path AIS upon FIFO
overflow/underflow detection. When set low (normal operation), detection of FIFO
overflow/underflow causes path AIS to be inserted in the outgoing stream for at least three
consecutive frames.
PMON_XFER :
When set high, Negative and Positive Performance Monitors are transferred to a stable
readable register.
PTR_RST:
When set high, incoming and outgoing pointers are reset to their default values. This bit is
level sensitive.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
257
PMC [ PMC-SIERRA, INC ]
