PM5352 View Datasheet(PDF) - PMC-Sierra

Part Name

Description

MFG CO.

PM5352

SATURN USER NETWORK INTERFACE (STAR)

PMC-Sierra 

DATA SHEET

PMC-1990421

ISSUE 2

PM5352 S/UNI STAR

SATURN USER NETWORK INTERFACE 155 (STAR)

• 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.

1.7 The Transmit POS Processor

• Generic design that supports any packet based link layer protocol, like

PPP, HDLC and Frame Relay.

• Performs self synchronous POS data scrambling (X43 + 1 polynomial).

• Encapsulates packets within a POS frame.

• Performs flag sequence insertion.

• Performs byte stuffing for transparency processing.

• Performs frame check sequence generation. The POS processor

supports the generation of both CRC-CCITT and CRC-32 frame check

sequences.

• Aborts packets under the direction of the host or when the FIFO

underflows.

• Provides a synchronous 256 byte FIFO buffer accessed through

the16-bit data bus on the POS-PHY System Interface.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 5

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