C8051F317 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F317

8/16 kB ISP Flash MCU Family

Silicon Laboratories 

C8051F310/1/2/3/4/5/6/7

SFR Definition 6.1. REF0CN: Reference Control

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

REFSL TEMPE BIASE

00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0 SFR Address:

0xD1

Bits7–4:

Bit3:

Bit2:

Bit1:

Bit0:

UNUSED. Read = 0000b; Write = don’t care.

REFSL: Voltage Reference Select.

This bit selects the source for the internal voltage reference.

0: VREF input pin used as voltage reference.

1: VDD used as voltage reference.

TEMPE: Temperature Sensor Enable Bit.

0: Internal Temperature Sensor off.

1: Internal Temperature Sensor on.

BIASE: Internal Analog Bias Generator Enable Bit. (Must be ‘1’ if using ADC).

0: Internal Bias Generator off.

1: Internal Bias Generator on.

UNUSED. Read = 0b. Write = don’t care.

Table 6.1. External Voltage Reference Circuit Electrical Characteristics

VDD = 3.0 V; –40 to +85 °C unless otherwise specified

Parameter

Conditions

Input Voltage Range

Input Current

Sample Rate = 200 ksps;

VREF = 3.0 V

Min Typ

0

12

Max

VDD

Units

V

µA

66

Rev. 1.6

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