44.8.1 Control A
| Name: | CTRLA |
| Offset: | 0x00 |
| Reset: | 0x00 |
| Property: | PAC Write-Protection |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| LPMUX | ENABLE | SWRST | |||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 0 | 0 |
Bit 7 – LPMUX Low-Power Mux
| Value | Description |
|---|---|
| 0 | The analog input muxes have low resistance, but consume more power at lower voltages (e.g., are driven by the voltage doubler). |
| 1 | The analog input muxes have high resistance, but consume less power at lower voltages (e.g., the voltage doubler is disabled). |
Bit 1 – ENABLE Enable
| Value | Description |
|---|---|
| 0 | The peripheral is disabled. |
| 1 | The peripheral is enabled. Each OPAMP must also be enabled individually by the Enable bit in the corresponding OPAMP Control register (OPAMPCTRLx.ENABLE). |
Bit 0 – SWRST Software Reset
Writing a '0' to this bit has no effect.
Writing a '1' to this bit resets all registers in the MODULE to their initial state, and the OPAMP will be disabled.
Writing a '1' to CTRLA.SWRST will always take precedence, meaning that all other writes in the same write-operation will be discarded.
| Value | Description |
|---|---|
| 0 | There is no reset operation ongoing. |
| 1 | The reset operation is ongoing. |