A.8. INTEST wrapper signals

Table A.7 describes the ARM966E-S INTEST wrapper signals.

Table A.7. INTEST wrapper signals

Name

Direction

Description

SI

Input

Serial input data for the INTEST wrapper scan chain.

SO

Output

Serial output data from the INTEST wrapper scan chain

SCANEN

Input

Enables scanning of data through the INTEST wrapper scan chain.

TESTEN

Input

Selects the INTEST wrapper scan chain as the source for ARM966E-S inputs.

SERIALEN

Input

Enables the INTEST wrapper BIST activation mode where the scan chain is used to apply serialised ARM instructions to the ARM966E-S to activate BIST test of the tightly-coupled SRAM.

Copyright © 1999 ARM Limited. All rights reserved.ARM DDI 0164A
Non-Confidential