gpio_ext_porta
This GPIO
register is used to read input data. Check the GPIO chapter in the Technical
Reference Manual for details on how GPIO2 is implemented.
| Module Instance | Base Address | Register Address |
|---|---|---|
| gpio0 | 0xFF708000 | 0xFF708050 |
| gpio1 | 0xFF709000 | 0xFF709050 |
| gpio2 | 0xFF70A000 | 0xFF70A050 |
Offset: 0x50
Access: RO
Important: To prevent indeterminate
system behavior, reserved areas of memory must not be accessed by software or
hardware. Any area of the memory map that is not explicitly defined as a register
space or accessible memory is considered reserved.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reserved |
gpio_ext_porta RO 0x0 |
||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
gpio_ext_porta RO 0x0 |
|||||||||||||||
gpio_ext_porta Fields
| Bit | Name | Description | Access | Reset |
|---|---|---|---|---|
| 28:0 | gpio_ext_porta | When Port A Data Register is configured as Input, then reading this location reads the values on the signals. When the data direction of Port A Data Register is set as Output, reading this location reads Port A Data Register. Note that only bits[26:0] are implemented for gpio2. |
RO | 0x0 |