PM7375 查看數據表（PDF） - PMC-Sierra

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PM7375

LOCAL ATM SEGMENTATION AND REASSEMBLY & PHYSICAL LAYER INTERFACE

PMC-Sierra 

DATA SHEET

PMC-931127

PM7375 LASAR-155

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

9.2.3 RECEIVE PATH OVERHEAD PROCESSOR ....................................................45

9.3

RECEIVE ATM CELL PROCESSOR ...............................................................................45

9.3.1 CELL DELINEATION.........................................................................................45

9.3.2 CELL FILTER AND HEC VERIFICATION..........................................................46

9.3.3 GFC EXTRACTION...........................................................................................48

9.3.4 PAYLOAD DESCRAMBLING.............................................................................48

9.4

RECEIVE ATM AND ADAPTATION LAYER CELL PROCESSOR ...................................48

9.4.1 ATM LAYER PROCESSING ..............................................................................48

9.4.2 AAL LAYER PROCESSING ..............................................................................49

9.5

CONNECTION PARAMETER STORE ............................................................................50

9.6

SAR PERFORMANCE MONITOR...................................................................................50

9.7

TRANSMIT ATM TRAFFIC SHAPER ..............................................................................51

9.7.1 RATE QUEUE STRUCTURES ..........................................................................51

9.7.2 PEAK CELL RATE (PCR) AND SUSTAINABLE CELL RATE (SCR)

TRANSMISSION ............................................................................................... 52

9.7.3 CBRC SUPPORT..............................................................................................53

9.8

TRANSMIT ATM AND ADAPTATION LAYER CELL PROCESSOR.................................53

9.8.1 AAL LAYER PROCESSING ..............................................................................53

9.8.2 ATM LAYER PROCESSING ..............................................................................53

9.9

TRANSMIT ATM CELL PROCESSOR ............................................................................54

9.10 TRANSMIT TRANSMITTER AND OVERHEAD PROCESSOR.......................................55

9.10.1 TRANSMIT SECTION OVERHEAD PROCESSOR ..........................................55

9.10.2 TRANSMIT LINE OVERHEAD PROCESSOR ..................................................55

9.11 TRANSMIT PATH OVERHEAD PROCESSOR................................................................57

9.12 TRANSMIT LINE INTERFACE ........................................................................................58

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

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