IO MUX Configure Register for pad GPIO0
| MCU_OE | Output enable of the pad in sleep mode. 1: output enabled; 0: output disabled. |
| SLP_SEL | Sleep mode selection of this pad. Set to 1 to put the pad in pad mode. |
| MCU_WPD | Pull-down enable of the pad in sleep mode. 1: internal pull-down enabled; 0: internal pull-down disabled. |
| MCU_WPU | Pull-up enable of the pad during sleep mode. 1: internal pull-up enabled; 0: internal pull-up disabled. |
| MCU_IE | Input enable of the pad during sleep mode. 1: input enabled; 0: input disabled. |
| FUN_WPD | Pull-down enable of the pad. 1: internal pull-down enabled; 0: internal pull-down disabled. |
| FUN_WPU | Pull-up enable of the pad. 1: internal pull-up enabled; 0: internal pull-up disabled. |
| FUN_IE | Input enable of the pad. 1: input enabled; 0: input disabled. |
| FUN_DRV | Select the drive strength of the pad. 0: ~5 mA; 1: ~10mA; 2: ~20mA; 3: ~40mA. |
| MCU_SEL | Select IO MUX function for this signal. 0: Select Function 1; 1: Select Function 2; etc. |
| FILTER_EN | Enable filter for pin input signals. 1: Filter enabled; 2: Filter disabled. |