System Control Module

9.1.3GPIO Register Locations

The following table shows the registers associated with the GPIO block and the physical addresses used to access them.

 

Address

Name

Description

 

 

 

 

0h

9004 0000

GPLR

GPIO pin-level register

 

 

 

 

0h

9004 0004

GPDR

GPIO pin direction register

 

 

 

 

0h

9004 0008

GPSR

GPIO pin output set register

 

 

 

 

0h

9004 000C

GPCR

GPIO pin output clear register

 

 

 

 

0h

9004 0010

GRER

GPIO rising-edge detect register

 

 

 

 

0h

9004 0014

GFER

GPIO falling-edge detect register

 

 

 

 

0h

9004 0018

GEDR

GPIO edge detect status register

 

 

 

 

0h

9004 001C

GAFR

GPIO alternate function register

 

 

 

 

9-10

SA-1100 Developer’s Manual

Page 80
Image 80
Intel SA-1100 manual Gpio Register Locations, Address Name Description