PM7384 Просмотр технического описания (PDF) - PMC-Sierra

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производитель

PM7384

FRAME ENGINE AND DATALINK MANAGER 84P672

PMC-Sierra 

DATA SHEET

PMC-1990445

PM7384 FREEDM-84P672

ISSUE 5

FRAME ENGINE AND DATA LINK MANAGER 84P672

9.6.2 DMA TRANSACTION CONTROLLER...........................52

9.6.3 WRITE DATA PIPELINE/MUX .......................................52

9.6.4 DESCRIPTOR INFORMATION CACHE ........................52

9.6.5 FREE QUEUE CACHE ..................................................53

9.7 PCI CONTROLLER......................................................................53

9.7.1 MASTER MACHINE ......................................................54

9.7.2 MASTER LOCAL BUS INTERFACE..............................56

9.7.3 TARGET MACHINE .......................................................57

9.7.4 CBI BUS INTERFACE ...................................................59

9.7.5 ERROR / BUS CONTROL .............................................59

9.8 TRANSMIT DMA CONTROLLER.................................................59

9.8.1 DATA STRUCTURES ....................................................60

9.8.2 TASK PRIORITIES ........................................................72

9.8.3 DMA TRANSACTION CONTROLLER...........................72

9.8.4 READ DATA PIPELINE..................................................72

9.8.5 DESCRIPTOR INFORMATION CACHE ........................72

9.8.6 FREE QUEUE CACHE ..................................................73

9.9 TRANSMIT HDLC CONTROLLER / PARTIAL PACKET BUFFER73

9.9.1 TRANSMIT HDLC PROCESSOR..................................73

9.9.2 TRANSMIT PARTIAL PACKET BUFFER PROCESSOR74

9.10 TRANSMIT CHANNEL ASSIGNER .............................................76

9.10.1 LINE INTERFACE..........................................................78

9.10.2 PRIORITY ENCODER ...................................................79

9.10.3 CHANNEL ASSIGNER ..................................................79

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

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