Texas Instruments OMAP36 Series, Technical Reference Manual

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General-Purpose Interface Register Manual
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25.6 General-Purpose Interface Register Manual
This section summarizes the hardware interface for the GPIO product. Each module instance within the
design is shown, together with the module register map and bit definitions for each bit field.
Table 25-6 lists the base address and address space for GPIO instances.
Table 25-6. Instance Summary
Module Name Base Address Size
GPIO1 0x4831 0000 4KB
GPIO2 0x4905 0000 4KB
GPIO3 0x4905 2000 4KB
GPIO4 0x4905 4000 4KB
GPIO5 0x4905 6000 4KB
GPIO6 0x4905 8000 4KB
25.6.1 General-Purpose Interface Register Mapping Summary
All module registers are 8-, 16-, or 32-bit accessible through the L4 interconnect (little endian encoding).
Access to registers is direct; no shadow registers are implemented.
Table 25-7 through Table 25-12 describe the GPIO register offset addresses.
Table 25-7. GPIO1 Register Summary
Register Name Type Register Width Address Offset Physical Address
(Bits)
GPIO_REVISION R 32 0x000 0x4831 0000
GPIO_SYSCONFIG RW 32 0x010 0x4831 0010
GPIO_SYSSTATUS R 32 0x014 0x4831 0014
GPIO_IRQSTATUS1 RW 32 0x018 0x4831 0018
GPIO_IRQENABLE1 RW 32 0x01C 0x4831 001C
GPIO_WAKEUPENABLE RW 32 0x020 0x4831 0020
GPIO_IRQSTATUS2 RW 32 0x028 0x4831 0028
GPIO_IRQENABLE2 RW 32 0x02C 0x4831 002C
GPIO_CTRL RW 32 0x030 0x4831 0030
GPIO_OE RW 32 0x034 0x4831 0034
GPIO_DATAIN R 32 0x038 0x4831 0038
GPIO_DATAOUT RW 32 0x03C 0x4831 003C
GPIO_LEVELDETECT0 RW 32 0x040 0x4831 0040
GPIO_LEVELDETECT1 RW 32 0x044 0x4831 0044
GPIO_RISINGDETECT RW 32 0x048 0x4831 0048
GPIO_FALLINGDETECT RW 32 0x04C 0x4831 004C
GPIO_DEBOUNCENABLE RW 32 0x050 0x4831 0050
GPIO_DEBOUNCINGTIME RW 32 0x054 0x4831 0054
GPIO_CLEARIRQENABLE1 RW 32 0x060 0x4831 0060
GPIO_SETIRQENABLE1 RW 32 0x064 0x4831 0064
GPIO_CLEARIRQENABLE2 RW 32 0x070 0x4831 0070
GPIO_SETIRQENABLE2 RW 32 0x074 0x4831 0074
GPIO_CLEARWKUENA RW 32 0x080 0x4831 0080
GPIO_SETWKUENA RW 32 0x084 0x4831 0084
GPIO_CLEARDATAOUT RW 32 0x090 0x4831 0090
GPIO_SETDATAOUT RW 32 0x094 0x4831 0094
3486 General-Purpose Interface SWPU177N – December 2009 – Revised November 2010
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