Main Clock Control A

Name:
MCLKCTRLA
Offset:
0x00
Reset:
0x00
Access:
Configuration Change Protection
Bit76543210
CLKOUTCLKSEL[3:0]
AccessR/WR/WR/WR/WR/W
Reset00000

Bit 7 – CLKOUT: Peripheral Clock Out

Peripheral Clock Out

When this bit is written to ‘1’, the peripheral clock is output to the CLKOUT pin.

As long as the peripheral clock is running, the clock is output to the pin.

Bits 3:0 – CLKSEL[3:0]: Clock Select

Clock Select

This bit field selects the source for the Main Clock (CLK_MAIN).

ValueNameDescription
0x0 OSCHF Internal high-frequency oscillator
0x1 OSC32K 32.768 kHz internal oscillator
0x2 XOSC32K 32.768 kHz external crystal oscillator
0x3 EXTCLK External clock
Other - Reserved