Main Clock Control A
Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CLKOUT | CLKSEL[1:0] | ||||||
AccessR/W | R/W | R/W | |||||
Reset0 | 0 | 0 |
System Clock Out
When this bit is
written to ‘1
’, the system clock is output to the CLKOUT pin.
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 | 32.768 kHz internal ultra low-power oscillator |
0x2 | XOSC32K | 32.768 kHz external crystal oscillator |
0x3 | EXTCLK | External clock |