C8051F930-TB Silicon Laboratories Inc, C8051F930-TB Datasheet - Page 88

• Manufacturer Part Number: C8051F930-TB
• Description: BOARD TARGET/PROTO W/C8051F930
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F930-TB

• Contents: Board
• Processor To Be Evaluated: C8051F930
• Processor Series: C8051F9xx
• Data Bus Width: 8 bit
• Interface Type: I2C, UART, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 0.9 V to 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F930
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1472

C8051F93x-C8051F92x
SFR Definition 5.15. REF0CN: Voltage Reference Control
SFR Page = 0x0; SFR Address = 0xD1
5.12. Voltage Reference Electrical Specifications
See Table 4.11 on page 60 for detailed Voltage Reference Electrical Specifications.
88
Name
Reset
Type
7:6
4:3
Bit
Bit
5
2
1
0
REFGND Analog Ground Reference.
Unused
TEMPE
Unused
REFOE
REFSL
Name
R
7
0
Unused.
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/DC+ 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.
Temperature Sensor Enable.
Enables/Disables the internal temperature sensor.
0: Temperature Sensor Disabled.
1: Temperature Sensor Enabled.
Unused.
Read = 0b; Write = Don’t Care.
Internal Voltage Reference Output Enable.
Connects/Disconnects the internal voltage reference to the P0.0/VREF pin.
0: Internal 1.68 V Precision Voltage Reference disabled and not connected to
P0.0/VREF.
1: Internal 1.68 V Precision Voltage Reference enabled and connected to
P0.0/VREF.
R
6
0
REFGND
R/W
5
0
R/W
Rev. 1.1
4
1
REFSL
Function
R/W
3
1
TEMPE
R/W
2
0
R
1
0
REFOE
R/W
0
0