C8051F970-A-GM Datasheet, PDF (127/454 Pages) Silicon Laboratories – Low Power Capacitive Sensing MCU with up to 32 kB of Flash

17.10. Voltage Reference Registers
C8051F97x
Register 17.13. REF0CN: Voltage Reference Control
Bit
7
6
5
4
3
2
1
0
Name
Reserved
REFSL
TEMPE
Reserved
Type
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
SFR Page = 0x0; SFR Address: 0xD1
Table 17.14. REF0CN Register Bit Descriptions
Bit
Name
Function
7:5
Reserved Must write reset value.
4:3
REFSL Voltage Reference Select.
Selects the ADC0 voltage reference.
00: The ADC0 voltage reference is the P0.0/VREF pin.
01: The ADC0 voltage reference is the VDD pin.
10: The ADC0 voltage reference is the internal 1.8 V digital supply voltage.
11: The ADC0 voltage reference is the internal 1.65 V high speed voltage reference.
2
TEMPE Temperature Sensor Enable.
Enables/Disables the internal temperature sensor.
0: Disable the Temperature Sensor.
1: Enable the Temperature Sensor.
1:0
Reserved Must write reset value.
Rev 1.0
127