C8051T326-GMR Silicon Labs, C8051T326-GMR Datasheet - Page 58
C8051T326-GMR
Manufacturer Part Number
C8051T326-GMR
Description
8-bit Microcontrollers - MCU USB-OTP-16K-QFN28
Manufacturer
Silicon Labs
Datasheet
1.C8051T322-GQR.pdf
(292 pages)
Specifications of C8051T326-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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C8051T620/621/320/321/322/323
SFR Definition 10.1. REF0CN: Reference Control
SFR Address = 0xD1
58
Name
Reset
6:5
Bit
Type
7
4
3
2
1
0
Bit
REGOVR Regulator Reference Override.
REFBGS Reference Buffer Gain Select.
Unused
TEMPE
REFBE
REFSL
BIASE
Name
REFBGS
R/W
7
0
This bit selects between 1x and 2x gain for the on-chip voltage reference buffer.
0: 2x Gain
1: 1x Gain
Unused. Read = 00b; Write = don’t care.
This bit “overrides” the REFSL bit, and allows the internal regulator to be used as a ref-
erence source.
0: The voltage reference source is selected by the REFSL bit.
1: The internal regulator is used as the voltage reference.
Voltage Reference Select.
This bit selects the ADCs voltage reference.
0: V
1: V
Temperature Sensor Enable Bit.
0: Internal Temperature Sensor off.
1: Internal Temperature Sensor on.
Internal Analog Bias Generator Enable Bit.
0: Internal Bias Generator off.
1: Internal Bias Generator on.
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
DD
R
used as voltage reference.
6
0
pin used as voltage reference.
R
5
0
REGOVR
R/W
Rev. 1.1
4
0
Function
REFSL
R/W
3
0
TEMPE
R/W
2
0
BIASE
R/W
1
0
REF
REFBE
pin.
R/W
0
0
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