參數(shù)資料
型號: PM5352-B1
英文描述: Interface IC
中文描述: 接口IC
文件頁數(shù): 7/77頁
文件大?。?/td> 901K
代理商: PM5352-B1
PM5352 S/UNI STAR
DATA SHEET
PMC-1990421
ISSUE 2
SATURN USER NETWORK INTERFACE 155 (STAR)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
3
1.3 The Receive ATM Processor
Extracts ATM cells from the received STS-3c (STM-1) synchronous
payload envelope using ATM cell delineation.
Provides ATM cell payload de-scrambling.
Performs header check sequence (HCS) error detection and
correction, and idle/unassigned cell filtering.
Detects Out of Cell Delineation (OCD) and Loss of Cell Delineation
(LCD).
Counts number of received cells, idle cells, errored cells and dropped
cells.
Provides a synchronous 8-bit wide, four-cell FIFO buffer.
1.4 The Receive POS Processor
Generic design that supports packet based link layer protocols, like
PPP, HDLC and Frame Relay.
Performs self synchronous POS data de-scrambling on SPE payload
(x
43
+1 polynomial).
Performs flag sequence detection and terminates the received POS
frames.
Performs frame check sequence (FCS) validation. The POS
processor supports the validation of both CRC-CCITT and CRC-32
frame check sequences.
Performs Control Escape de-stuffing.
Checks for packet abort sequence.
Checks for octet aligned packet lengths and for minimum and
maximum packet lengths. Automatically deletes short packets
(software configurable), and marks those exceeding the maximum
length as errored.
Provides a synchronous 256 byte FIFO buffer accessed through a 16-
bit data bus on the POS-PHY System Interface.
This Material Copyrighted by Its Respective Manufacturer
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