PM7341 datasheet(65/413 Pages) PMC

65 / 413 page

PRELIMINARY

INVERSE MULTIPLEXING OVER ATM

PM7341 S/UNI-IMA-84

DATASHEET

PMC-2000223

ISSUE 4

INVERSE MULTIPLEXING OVER ATM

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

9.10 JTAG & Scan Interface (7 Signals)

Pin Name

Type

No.

Function

TCK

Input

A25

The Test Clock (TCK) signal provides timing for test

operations that are carried out using the IEEE

P1149.1 test access port.

TMS

Input

B24

The Test Mode Select (TMS) is an active high signal

that controls the test operations carried out using the

IEEE P1149.1 test access port.

The TMS signal has an integral pull-up resistor.

The TMS input is sampled on the rising edge of TCK.

TDI

Input

A24

The Test Data Input (TDI) signal carries test data

into the S/UNI-IMA-84 via the IEEE P1149.1 test

access port.

The TDI signal has an integral pull-up resistor.

The TDI input is sampled on the rising edge of TCK.

TDO

Tristate B23

The Test Data Output (TDO) signal carries test data

out of the S/UNI-IMA-84 via the IEEE P1149.1 test

access port. TDO is a tristate output that is inactive

except when the scanning of data is in progress.

The TDO output is updated/tristated on the falling

edge of TCK.

TRSTB

Input

C23

The Active low Test Reset (TRSTB) is an active low

signal that provides an asynchronous S/UNI-IMA-84

test access port reset via the IEEE P1149.1 test

access port. TRSTB is a Schmitt-triggered input with

an integral pull-up resistor.

Note that when not being used, TRSTB must be

connected to the RSTB input.

SCAN_MODE

Input

A10

The Active low Scan Mode (SCAN_MODEB) is an

active low signal that places the S/UNI-IMA-84 into a

manufacturing test mode. Must be tied high to

disable the scan logic.

PM7341 Datasheet(PDF) 65 Page - PMC-Sierra, Inc

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