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RELEASED
PM73122 AAL1GATOR-32
DATASHEET
PMC-1981419
ISSUE 7
32 LINK CES/DBCES AAL1 SAR PROCESSOR
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
4
Provides an optional 8/16-bit Any-PHY slave interface.
Supports up to 1024 Virtual Channels (VC).
Supports n x 64 (consecutive channels) and m x 64 (non-consecutive
channels) structured data format.
Provides transparent transmission of Common Channel Signaling (CCS) and
Channel Associated Signaling (CAS). Provides for termination of CAS
signaling.
Allows the CAS nibble to be coincident with either the first or second nibble of
the data.
Provides per-VC data and signaling conditioning in the transmit cell direction
and per DS0 data and signaling conditioning in the transmit line direction.
Data and signaling conditioning can be individually enabled. Includes DS3
AIS conditioning support in both directions. Transmit line conditioning options
include programmable byte pattern, pseudo-random pattern or old data.
Conditioning automatically occurs on underruns.
In Cell Transmit direction, provides per-VC configuration of time slots
allocated, CAS signaling support, partial cell size, data and signaling
conditioning, ATM Cell header definition. Generates AAL1 sequence
numbers, pointers and SRTS values in accordance with ITU-T I.363.1.
Multicast connections are supported.
In Cell Transmit direction provides counters for:
Conditioned cells transmitted for each queue
Cells which were suppressed for each queue
Total number of cells transmitted for each queue
In Cell Receive direction, provides per-VC configuration of time slots
allocated, CAS signaling support, partial cell size, sequence number
processing options, cell delay variation tolerance buffer depth, maximum
buffer depth. Processes AAL1 headers in accordance with ITU-T I.363.1.
In Cell Receive direction, supports the Fast Sequence Number processing
algorithm on all types of connections and Robust Sequence Number
processing on Unstructured Data Format (UDF) connections. Cells are
inserted/dropped to maintain bit integrity on lost or misinserted cells. Bit
integrity is maintained through any single errored cell or up to six lost cells. Bit