Registers
| Name | Address | Width | GPIO bitmasks associated with this register | 
| GPIO_DATA0 | 0x10147000 | 2 | 0x1, 0x2, 0x4 | 
| GPIO_DATA1 | 0x10147010 | 4 | 0x8, 0x10 | 
| GPIO_DATA2 | 0x10147014 | 2 | 0x20 | 
| GPIO_DATA3 | 0x10147020 | 4 | 0x40, 0x80, 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000, 0x10000, 0x20000 | 
| ?? | 0x10147024 | 4 | 0x40, 0x80, 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000, 0x10000, 0x20000 | 
| GPIO_DATA4 | 0x10147028 | 2 | 0x40000 | 
0x10147010
| Bit | Description | 
| 24 | Enable/disable? GPIO interrupt 0x64 (bitmask 0x8) | 
| 25 | Enable/disable? GPIO interrupt 0x66 (bitmask 0x10) | 
GPIO_DATA
GPIO_DATA0
| Bit | Description | 
| 0-2 | Used for GPIO bitmask 0x7. | 
| 3-15 | Unused by GPIO-sysmodule and TwlBg. | 
GPIO_DATA1
| Bit | Description | 
| 0-1 | Used for GPIO bitmask 0x18. | 
| 2-31 | Unused by GPIO-sysmodule and TwlBg. | 
GPIO_DATA2
| Bit | Description | 
| 0 | Used for GPIO bitmask 0x20. | 
| 1-15 | Unused by GPIO-sysmodule and TwlBg. | 
GPIO_DATA3
| Bit | Description | 
| 0-11 | Used for GPIO bitmask 0x3FFC0. | 
| 12-31 | Unused by GPIO-sysmodule and TwlBg. | 
GPIO_DATA4
| Bit | Description | 
| 0 | Used for GPIO bitmask 0x40000. | 
| 1-15 | Unused by GPIO-sysmodule and TwlBg. | 
Default values
After bootrom initialization, these are the values of the registers:
| Address | Value | 
| 0x10147000 | 0x0003 | 
| 0x10147010 | 0x00000002 | 
| 0x10147014 | 0x0000 | 
| 0x10147020 | 0x00000DFB | 
| 0x10147024 | 0x00000000 | 
| 0x10147028 | 0x0000 |