PM4541 datasheet(9/46 Pages) PMC

9 / 46 page

TELECOM STANDARD PRODUCT

PMC-Sierra, Inc.

PM4541 T1XC-EVBD

PMC-920314

ISSUE 2

T1XC EVALUATION DAUGHTERBOARD

INTERFACE DESCRIPTION

3.1

Edge Connector Interface

The Edge Connector Interface is made up of a male 96 pin DIN of which 64 pins are

actually used. It consists of signals appropriate to read and write to the registers of

the devices on the daughterboard, and it provides the necessary power and ground.

The connections have been specially designed to mate with PMC's PM1501 EVMB

evaluation motherboard. TTL signal levels are used on this interface.

Signal

Name

Type

Function

ALE

Address latch enable. When high, identifies that

address is valid on AD[7:0].

Microprocessor Clock

RWB

Active low write, active high read enable

RSTB

Active low H/W reset

A[15]

Address bus bit 15

A[14]

Address bus bit 14

A[13]

Address bus bit 13

A[12]

Address bus bit 12

A[11]

Address bus bit 11

A[10]

C10

Address bus bit 10

A[9]

C11

Address bus bit 9

A[8]

C12

Address bus bit 8

AD[7]

I/O

C13

Multiplexed address/data bus bit 7

AD[6]

I/O

C14

Multiplexed address/data bus bit 6

AD[5]

I/O

C15

Multiplexed address/data bus bit 5

AD[4]

I/O

C16

Multiplexed address/data bus bit 4

AD[3]

I/O

C17

Multiplexed address/data bus bit 3

AD[2]

I/O

C18

Multiplexed address/data bus bit 2

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