C8051F336_08 Datasheet, PDF (57/227 Pages) Silicon Laboratories – Mixed-Signal Byte-Programmable EPROM MCU

C8051F336/7/8/9
SFR Definition 10.1. REF0CN: Reference Control
Bit
7
6
5
4
3
2
1
0
Name
REFSL TEMPE BIASE REFBE
Type
R
R
R
R
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
SFR Address = 0xD1
Bit Name
Function
7:4 UNUSED Unused. Read = 0000b; Write = don’t care.
3 REFSL _{Voltage Reference Select.}
This bit selects the ADCs voltage reference.
0: V_REF pin used as voltage reference.
1: V_DD used as voltage reference.
2 TEMPE _{Temperature Sensor Enable Bit.}
0: Internal Temperature Sensor off.
1: Internal Temperature Sensor on.
1 BIASE _{Internal Analog Bias Generator Enable Bit.}
0: Internal Bias Generator off.
1: Internal Bias Generator on.
0 REFBE _{On-chip Reference Buffer Enable Bit.}
0: On-chip Reference Buffer off.
1: On-chip Reference Buffer on. Internal voltage reference driven on the V_REF pin.
Rev.1.0
57