PM5347 datasheet(52/302 Pages) PMC

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PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

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

Pin Name

Type

No.

Function

RDB

Input

The active low read enable (RDB) signal is low

during S/UNI-PLUS register read accesses. The

S/UNI-PLUS drives the D[7:0] bus with the

contents of the addressed register while RDB and

CSB are low.

WRB

Input

The active low write strobe (WRB) signal is low

during a S/UNI-PLUS register write accesses.

The D[7:0] bus contents are clocked into the

addressed register on the rising WRB edge while

CSB is low.

D[0]

D[1]

D[2]

D[3]

D[4]

D[5]

D[6]

D[7]

I/O

The bidirectional data bus D[7:0] is used during

S/UNI-PLUS register read and write accesses.

A[0]

A[1]

A[2]

A[3]

A[4]

A[5]

A[6]

Input

The address bus A[7:0] selects specific registers

during S/UNI-PLUS register accesses.

A[7]/TRS

The test register select (TRS) signal selects

between normal and test mode register accesses.

TRS is high during test mode register accesses,

and is low during normal mode register accesses.

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