6.8.4.3 Oscillator Configuration

Name: OSCCFG
Offset: 0x02
Reset: 0x00
Property: -

Bit 76543210 
 OSCLOCK     FREQSEL[1:0] 
Access RRR 
Reset 010 

Bit 7 – OSCLOCK Oscillator Lock

This fuse bit is loaded to LOCK in CLKCTRL.OSC20MCALIBB during reset.
ValueDescription
0Calibration registers of the 20 MHz oscillator are accessible
1Calibration registers of the 20 MHz oscillator are locked

Bits 1:0 – FREQSEL[1:0] Frequency Select

These bits selects the operation frequency of the 16/20MHz internal oscillator (OSC20M), and determine the respective factory calibration values to be written to CAL20M in CLKCTRL.OSC20MCALIBA and TEMPCAL20M in CLKCTRL.OSC20MCALIBB.
ValueDescription
0x1Run at 16MHz with corresponding factory calibration
0x2Run at 20MHz with corresponding factory calibration
OtherReserved