C8051F561-IQR Silicon Labs, C8051F561-IQR Datasheet - Page 69

• Manufacturer Part Number: C8051F561-IQR
• Description: 8-bit Microcontrollers - MCU 50 MIPS 32 kB 2 kB CAN2.0 SPI
• Manufacturer: Silicon Labs

Specifications of C8051F561-IQR

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

SFR Definition 7.1. REF0CN: Reference Control
SFR Address = 0xD1; SFR Page = 0x00
Name
Reset
Bit
7:6
Type
5
4
3
2
1
0
Bit
Unused
TEMPE
ZTCEN
REFBE
REFLV
REFSL
BIASE
Name
R
7
0
Read = 00b; Write = don’t care.
Zero Temperature Coefficient Bias Enable Bit.
This bit must be set to 1b before entering oscillator suspend mode.
0: ZeroTC Bias Generator automatically enabled when required.
1: ZeroTC Bias Generator forced on.
Voltage Reference Output Level Select.
This bit selects the output voltage level for the internal voltage reference
0: Internal voltage reference set to 1.5 V.
1: Internal voltage reference set to 2.20 V.
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
6
0
used as voltage reference.
pin used as voltage reference.
ZTCEN
R
5
0
REFLV
Rev. 1.1
R
4
0
Function
REFSL
R/W
3
0
C8051F55x/56x/57x
TEMPE
R/W
2
0
BIASE
R/W
1
0
REF
REFBE
pin.
R/W
0
0
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