6.1 CONFIG1
| Name: | CONFIG1 | 
| Offset: | 0x8007 | 
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| VDDAR | CLKOUTEN | ||||||||
| Access | R/W | R/W | |||||||
| Reset | 1 | 1 | 
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| RSTOSC[1:0] | FEXTOSC[1:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 1 | 0 | 1 | |||||
Bit 12 – VDDAR VDD Analog Range Calibration Selection
| Value | Description | 
|---|---|
| 1 | Internal analog systems are calibrated for operation between VDD = 2.3V - 5.5V | 
| 0 | Internal analog systems are calibrated for operation between VDD = 1.8V - 3.6V | 
Bit 8 – CLKOUTEN Clock Out Enable
| Value | Description | 
|---|---|
| 1 | CLKOUT function is disabled; I/O function on CLKOUT pin | 
| 0 | CLKOUT function is enabled; FOSC/4 clock appears on CLKOUT pin | 
Bits 5:4 – RSTOSC[1:0] Power-up Default Value for COSC bits
| Value | Description | 
|---|---|
| 11 | EXTOSC operating per the FEXTOSC bits | 
| 10 | HFINTOSC with FRQ = 1 MHz | 
| 01 | LFINTOSC | 
| 00 | HFINTOSC with FRQ = 32 MHz | 
Bits 1:0 – FEXTOSC[1:0] External Oscillator Mode Selection
| Value | Description | 
|---|---|
| 11 | ECH (16 MHz and higher) | 
| 10 | ECL (below 16 MHz) | 
| 01 | Oscillator not enabled | 
| 00 | Reserved | 
