PM5349 查看數據表（PDF） - PMC-Sierra

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PM5349

SATURN USER NETWORK INTERFACE (155-QUAD)

PMC-Sierra 

S/UNI-QUAD

DATASHEET

PMC-971239

ISSUE 6

PMC-Sierra, Inc.

PM5349 S/UNI-QUAD

SATURN USER NETWORK INTERFACE (155-QUAD)

• Provides a differential TTL serial interface (can be adapted to PECL levels) at

155.52 Mbit/s.

• Provides a single transmit frame pulse input across the four channels to align

the transport frames to a system reference.

• Provides a single transmit byte clock (divide by eight of the synthesized line

rate clock) to provide a timing reference for the transmit outputs.

• Optionally inserts register programmable APS (K1, K2) and synchronization

status (S1) bytes.

• Optionally inserts path alarm indication signal (PAIS), path remote defect

indication (PRDI), line alarm indication signal (LAIS) and line remote defect

indication (LRDI).

• Inserts path BIP-8 codes (B3), path far end block error (G1) indications, line

BIP-24 codes (B2), line far end block error (M1) indications, and section BIP-8

codes (B1) to allow performance monitoring at the far end.

• Scrambles the transmitted STS-3c (STM-1) stream and inserts the framing

bytes (A1, A2).

• Inserts ATM cells into the transmitted STS-3c (STM-1) synchronous payload

envelope.

1.5 The Transmit ATM Processor

• Provides idle/unassigned cell insertion.

• Provides HCS generation/insertion, and ATM cell payload scrambling.

• Counts number of transmitted and idle cells.

• Provides a synchronous 8-bit wide, four cell FIFO buffer.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

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