PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
1.3
SONET Path / SDH High Order Path
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Interprets the received payload pointer (H1, H2) and extracts the STS-48c/STM-16c synchronous
payload envelope and path overhead.
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Detects loss of pointer (LOP), path alarm indication signal (PAIS) and path (normal and enhanced)
remote defect indication (RDI) for the receive stream. Optionally inserts path alarm indication signal
(PAIS) and path remote defect indication (RDI) in the transmit stream.
Extracts and insert the entire SONET/SDH path overhead to and from dedicated pins. The path
overhead bytes may be sourced from internal registers or from bit serial path overhead input stream.
Path overhead insertion may also be disabled.
Extracts the received path payload label (C2) byte into an internal register and detects for payload
label unstable (PLU), payload label mismatch (PLM), payload unequipped (UNEQ) and payload
defect indication (PDI). Inserts the path payload label (C2) byte from an internal register for the
transmit stream.
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Extracts a 64 byte or 16 byte path trace (J1) message using an internal register bank for the receive
stream. Detects an unstable message or mismatch message with an expected message. Provides
access to the captured, accepted and expected message via the microprocessor port. Inserts a 64
byte or 16 byte path trace (J1) message using an internal register bank for the transmit stream.
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Detects received path BIP-8 and counts received path BIP-8 errors for performance monitoring
purposes. BIP-8 errors are selectable to be treated on a bit basis or block basis. Optionally
calculates and inserts path BIP-8 error detection codes for the transmit stream.
Counts received path remote error indications (REI’s) for performance monitoring purposes.
Optionally inserts the path REI count into the path status byte (G1) based on bit or block BIP-8 errors
detected in the receive path. Reporting of BIP-8 errors is on a bit or block basis independent of the
accumulation of BIP-8 errors.
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Provides automatic transmit path RDI and path Enhanced RDI insertion following detection of various
received alarms (LAIS, LOP, LOPCON, PAIS, PAISCON, PTIM, PTIU, PLM, PLU, UNEQ, PDI).
1.4
The Receive ATM Processor
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Extracts ATM cells from the received STS-48c/STM16-16c channel payloads using ATM cell
delineation.
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Provides ATM cell payload de-scrambling.
Performs header check sequence (HCS) error detection and correction, and idle/unassigned cell
filtering.
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Detects out of cell delineation (OCD) and loss of cell delineation (LCD) alarms.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
3
PMC [ PMC-SIERRA, INC ]
