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9-10 SA-1100
Developer’s Manual
System Control Module
9.1.3 GPIO 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