C8051F709-GQR Silicon Labs, C8051F709-GQR Datasheet - Page 71

• Manufacturer Part Number: C8051F709-GQR
• Description: 8-bit Microcontrollers - MCU 8kB 32B EEPROM Cap Sense
• Manufacturer: Silicon Labs

Specifications of C8051F709-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

SFR Definition 12.1. REF0CN: Voltage Reference Control
SFR Address = 0xD2; SFR Page = F
Name
Reset
Type
Bit
7:6
4:3
Bit
5
2
1
0
REFGND Analog Ground Reference.
Unused
TEMPE
Unused
REFSL
BIASE
Name
R
7
0
Read = 00b; Write = Don’t Care.
Selects the ADC0 ground reference.
0: The ADC0 ground reference is the GND pin.
1: The ADC0 ground reference is the P0.1/AGND pin.
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 1.6 V high-speed voltage reference.
Temperature Sensor Enable.
Enables/Disables the internal temperature sensor.
0: Temperature Sensor Disabled.
1: Temperature Sensor Enabled.
Internal Analog Bias Generator Enable Bit.
0: Internal Bias Generator off.
1: Internal Bias Generator on.
Read = 0b; Write = Don’t Care.
R
6
0
REFGND
R/W
5
0
R/W
Rev. 1.0
4
1
REFSL
Function
R/W
3
0
TEMPE
R/W
C8051F70x/71x
2
0
BIASE
R/W
1
0
R
0
0
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