PM7380 Ver la hoja de datos (PDF) - PMC-Sierra

Número de pieza

componentes Descripción

Fabricante

PM7380

FRAME ENGINE AND DATALINK MANAGER 32P672

PMC-Sierra 

RELEASED

DATA SHEET

PMC-1990262

PM7380 FREEDM-32P672

ISSUE 5

FRAME ENGINE AND DATA LINK MANAGER 32P672

9.5.2 DMA TRANSACTION CONTROLLER...........................56

9.5.3 WRITE DATA PIPELINE/MUX .......................................56

9.5.4 DESCRIPTOR INFORMATION CACHE ........................56

9.5.5 FREE QUEUE CACHE ..................................................57

9.6 PCI CONTROLLER......................................................................57

9.6.1 MASTER MACHINE ......................................................58

9.6.2 MASTER LOCAL BUS INTERFACE..............................60

9.6.3 TARGET MACHINE .......................................................61

9.6.4 CBI BUS INTERFACE ...................................................63

9.6.5 ERROR / BUS CONTROL .............................................63

9.7 TRANSMIT DMA CONTROLLER.................................................63

9.7.1 DATA STRUCTURES ....................................................64

9.7.2 TASK PRIORITIES ........................................................76

9.7.3 DMA TRANSACTION CONTROLLER...........................76

9.7.4 READ DATA PIPELINE..................................................76

9.7.5 DESCRIPTOR INFORMATION CACHE ........................76

9.7.6 FREE QUEUE CACHE ..................................................77

9.8 TRANSMIT HDLC CONTROLLER / PARTIAL PACKET BUFFER77

9.8.1 TRANSMIT HDLC PROCESSOR..................................77

9.8.2 TRANSMIT PARTIAL PACKET BUFFER PROCESSOR78

9.9 TRANSMIT CHANNEL ASSIGNER .............................................80

9.9.1 LINE INTERFACE TRANSLATOR (LIT) ........................82

9.9.2 LINE INTERFACE..........................................................82

9.9.3 PRIORITY ENCODER ...................................................83

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

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