PM7375-SC datasheet(104/430 Pages) PMC

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PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

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

9.14.11.1

Fig. 9.20 RMDRF and RMDRR Queues

RQB[31 :2 ] = Rx Queue Bas e r egi s t er

RMDRRQS [1 5 :0 ]

= RMDR Ready Queue S t ar t r egi s t er

RMDRRQW[1 5 :0 ] = RMDR Ready Queue Wr i t e r egi s t er

RMDRRQR[1 5 :0 ]

= RMDR Ready Queue Read r egi s t er

RMDRRQE[1 5 :0 ]

= RMDR Ready Queue End r egi s t er

Receive Management Descriptor (RMD) Referance Queues

Base Address:

Index Registers:

Managemnet Ready Queue:

Management Free Queue:

RMDRF QS [1 5 :0 ] = RMDR F r ee Queue S t ar t r egi s t er

RMDRF QW[1 5 :0 ] = RMDR F r ee Queue Wr i t e r egi s t er

RMDRF QR[1 5 :0 ] = RMDR F r ee Queue Read r egi s t er

RMDRF QE[1 5 :0 ] = RMDR F r ee Queue End r egi s t er

Base Address

+ Index Register

-------------------------

PCI Address

RQB[31:2]

Index[15:0]

AD[31:0]

Rx Management Des cr ipt or Reference Queue Memory Map

RQB

Bi t 0

Bi t 31

Stat us + RMDR

RMDR

Stat us + RMDR

St at us + RMDR

256KB

PCI Host Memory

RMDRRQS

RMDRRQW

RMDRRQR

RMDRRQE

RMDRF QS

RMDRF QW

RMDRF QR

RMDRF QE

St at us + RMDR

RMDR

RMD Reference Queues

Valid RMDR. Only the least

significant 16 bits are

valid.

Each queue element is a sixteen bit structure consisting of a RMDR and several

Status bits. Status bits are used by the RRM to indicate the type of cell passed to

the PCI Host. Please refer below.

PM7375-SC Datasheet(PDF) 104 Page - PMC-Sierra, Inc

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