PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 132

• Manufacturer Part Number: PIC12F1822
• Description: 8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F/LF1822/16F/LF1823
REGISTER 14-1:
TABLE 14-1:
DS41413A-page 132
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7
bit 6
bit 5-4
bit 3-2
bit 1-0
Note 1:
FVRCON
Legend:
R/W-0/0
FVREN
Name
2:
FVRRDY is always ‘1’ on devices with the LDO (PIC12F1822/16F1823).
Fixed Voltage Reference output cannot exceed V
Shaded cells are unused by the Fixed Voltage Reference module.
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
FVRRDY: Fixed Voltage Reference Ready Flag bit
0 = Fixed Voltage Reference output is not ready or not enabled
1 = Fixed Voltage Reference output is ready for use
Reserved: Read as ‘0’. Maintain these bits clear.
CDAFVR<1:0>: Comparator and DAC Fixed Voltage Reference Selection bits
00 = Comparator and DAC Fixed Voltage Reference Peripheral output is off
01 = Comparator and DAC Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = Comparator and DAC Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = Comparator and DAC Fixed Voltage Reference Peripheral output is 4x (4.096V)
ADFVR<1:0>: ADC Fixed Voltage Reference Selection bits
00 = ADC Fixed Voltage Reference Peripheral output is off
01 = ADC Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = ADC Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = ADC Fixed Voltage Reference Peripheral output is 4x (4.096V)
FVREN
FVRRDY
SUMMARY OF REGISTERS ASSOCIATED WITH THE FIXED VOLTAGE REFERENCE
Bit 7
R-q/q
FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER
(1)
FVRRDY
Bit 6
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
Reserved
R/W-0/0
Reserved
Bit 5
Reserved
R/W-0/0
Reserved
Preliminary
Bit 4
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
q = Value depends on condition
CDAFVR1
DD
CDAFVR1
R/W-0/0
.
Bit 3
(1)
CDAFVR0
CDAFVR0
Bit 2
R/W-0/0
(2)
(2)
ADFVR1
Bit 1
 2010 Microchip Technology Inc.
ADFVR1
R/W-0/0
ADFVR0
Bit 0
(2)
(2)
ADFVR0
R/W-0/0
Register
on page
132
bit 0