Main Clock Control A
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CLKSEL[1:0] | |||||||
| Access | R | R | R | R | R | R/W | R/W |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Clock Select
This bit field selects the source for the Main Clock (CLK_MAIN).
| Value | Name | Description |
|---|---|---|
| 0x0 | OSC20M | 16/20 MHz internal oscillator |
| 0x1 | OSCULP32K | 32 KHz internal ultra low-power oscillator |
| 0x2 | XOSC32K | 32.768 kHz external crystal oscillator |
| 0x3 | EXTCLK | External clock |