PM7385 datasheet(3/244 Pages) PMC

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PM7385 FREEDM-84A672

DATA SHEET

PMC-1990114

ISSUE 6

84 LINK, 672 CHANNEL FRAME ENGINE AND DATA LINK MANAGER

WITH ANY-PHY PACKET INTERFACE

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

CONTENTS

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

APPLICATIONS........................................................................................3

REFERENCES .........................................................................................4

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

DESCRIPTION .........................................................................................6

PIN DIAGRAM ..........................................................................................9

PIN DESCRIPTION ................................................................................10

FUNCTIONAL DESCRIPTION................................................................39

8.1

SCALEABLE BANDWIDTH INTERCONNECT (SBI) INTERFACE39

8.2

HIGH-LEVEL DATA LINK CONTROL (HDLC) PROTOCOL.........40

8.3

SBI EXTRACTER AND PISO.......................................................41

8.4

RECEIVE CHANNEL ASSIGNER ................................................41

8.4.1

Line Interface .................................................................43

8.4.2

Priority Encoder .............................................................44

8.4.3

Channel Assigner ..........................................................44

8.4.4

Loopback Controller.......................................................44

8.5

RECEIVE HDLC PROCESSOR / PARTIAL PACKET BUFFER ...44

8.5.1

HDLC Processor............................................................45

8.5.2

Partial Packet Buffer Processor .....................................45

8.6

RECEIVE ANY-PHY INTERFACE ................................................47

8.6.1

FIFO Storage and Control..............................................48

8.6.2

Polling Control and Management...................................49

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