9.2.2. Implementation details

Table 9.1 describes the tied-off or unused signals. Replace x with 0–3 for GPIO0–GPIO3.

Table 9.1. On-chip signal descriptions

Name

Source/

destination

Description

nGPAFENx[7:0]HIGHHardware control output enable, active LOW. If not utilized these pins must be tied HIGH.
GPAFOUTx[7:0]HIGHHardware control data input. If not utilized these pins can be tied LOW or HIGH.
GPAFINx[7:0]Not used

Hardware control data output.

Note

For GPIO3, the GPAFIN[7] signal is output to the BATOK signal in the system controller.

Copyright © 2004, 2006 ARM Limited. All rights reserved.ARM DDI 0287B
Non-Confidential