PM7382 Ver la hoja de datos (PDF) - PMC-Sierra

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PM7382

FRAME ENGINE AND DATALINK MANAGER 32P256

PMC-Sierra 

RELEASED

DATA SHEET

PMC-2010333

PM7382 FREEDM-32P256

ISSUE 3

FRAME ENGINE AND DATA LINK MANAGER 32P256

8.5.3 WRITE DATA PIPELINE/MUX .......................................54

8.5.4 DESCRIPTOR INFORMATION CACHE ........................54

8.5.5 FREE QUEUE CACHE ..................................................55

8.6 PCI CONTROLLER......................................................................55

8.6.1 MASTER MACHINE ......................................................56

8.6.2 MASTER LOCAL BUS INTERFACE..............................58

8.6.3 TARGET MACHINE .......................................................59

8.6.4 CBI BUS INTERFACE ...................................................61

8.6.5 ERROR / BUS CONTROL .............................................61

8.7 TRANSMIT DMA CONTROLLER.................................................61

8.7.1 DATA STRUCTURES ....................................................62

8.7.2 TASK PRIORITIES ........................................................74

8.7.3 DMA TRANSACTION CONTROLLER...........................74

8.7.4 READ DATA PIPELINE..................................................74

8.7.5 DESCRIPTOR INFORMATION CACHE ........................74

8.7.6 FREE QUEUE CACHE ..................................................75

8.8 TRANSMIT HDLC CONTROLLER / PARTIAL PACKET BUFFER75

8.8.1 TRANSMIT HDLC PROCESSOR..................................75

8.8.2 TRANSMIT PARTIAL PACKET BUFFER PROCESSOR76

8.9 TRANSMIT CHANNEL ASSIGNER .............................................78

8.9.1 LINE INTERFACE TRANSLATOR (LIT) ........................80

8.9.2 LINE INTERFACE..........................................................80

8.9.3 PRIORITY ENCODER ...................................................81

8.9.4 CHANNEL ASSIGNER ..................................................81

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

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