PM7380 データシートの表示（PDF） - PMC-Sierra

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PM7380

FRAME ENGINE AND DATALINK MANAGER 32P672

PMC-Sierra 

RELEASED

DATA SHEET

PMC-1990262

ISSUE 5

PM7380 FREEDM-32P672

FRAME ENGINE AND DATA LINK MANAGER 32P672

CONTENTS

1 FEATURES...............................................................................................1

2 APPLICATIONS........................................................................................4

3 REFERENCES .........................................................................................5

4 APPLICATION EXAMPLES ......................................................................6

5 BLOCK DIAGRAM....................................................................................8

6 DESCRIPTION .........................................................................................9

7 PIN DIAGRAM ........................................................................................12

8 PIN DESCRIPTION ................................................................................13

9 FUNCTIONAL DESCRIPTION ...............................................................38

9.1 HIGH SPEED MULTI-VENDOR INTEGRATION PROTOCOL

(H-MVIP) ......................................................................................38

9.2 HIGH-LEVEL DATA LINK CONTROL (HDLC) PROTOCOL.........38

9.3 RECEIVE CHANNEL ASSIGNER ................................................39

9.3.1 LINE INTERFACE TRANSLATOR (LIT) ........................41

9.3.2 LINE INTERFACE..........................................................42

9.3.3 PRIORITY ENCODER ...................................................42

9.3.4 CHANNEL ASSIGNER ..................................................42

9.3.5 LOOPBACK CONTROLLER .........................................43

9.4 RECEIVE HDLC PROCESSOR / PARTIAL PACKET BUFFER...43

9.4.1 HDLC PROCESSOR .....................................................44

9.4.2 PARTIAL PACKET BUFFER PROCESSOR ..................44

9.5 RECEIVE DMA CONTROLLER ...................................................46

9.5.1 DATA STRUCTURES ....................................................46

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

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