Dedicated GPIO output mode selection register
| SEL0 | Select GPIO out value configured by registers or CPU instructions for channel 0. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL1 | Select GPIO out value configured by registers or CPU instructions for channel 1. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL2 | Select GPIO out value configured by registers or CPU instructions for channel 2. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL3 | Select GPIO out value configured by registers or CPU instructions for channel 3. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL4 | Select GPIO out value configured by registers or CPU instructions for channel 4. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL5 | Select GPIO out value configured by registers or CPU instructions for channel 5. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL6 | Select GPIO out value configured by registers or CPU instructions for channel 6. 0: Configured by registers. 1: configured by CPU instructions. |
| SEL7 | Select GPIO out value configured by registers or CPU instructions for channel 7. 0: Configured by registers. 1: configured by CPU instructions. |