PIC16LF18854 Datasheet, PDF (267/668 Pages) Microchip Technology – C Compiler Optimized RISC Architecture

PIC16(L)F18856/76
16.3 Register Definitions: FVR Control
REGISTER 16-1: FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER
R/W-0/0
FVREN
bit 7
R-q/q
FVRRDY⁽¹⁾
R/W-0/0
TSEN⁽³⁾
R/W-0/0
TSRNG⁽³⁾
R/W-0/0
R/W-0/0
CDAFVR<1:0>
R/W-0/0
R/W-0/0
ADFVR<1:0>
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
q = Value depends on condition
bit 7
bit 6
bit 5
bit 4
bit 3-2
bit 1-0
FVREN: Fixed Voltage Reference Enable bit
1 = Fixed Voltage Reference is enabled
0 = Fixed Voltage Reference is disabled
FVRRDY: Fixed Voltage Reference Ready Flag bit⁽¹⁾
1 = Fixed Voltage Reference output is ready for use
0 = Fixed Voltage Reference output is not ready or not enabled
TSEN: Temperature Indicator Enable bit⁽³⁾
1 = Temperature Indicator is enabled
0 = Temperature Indicator is disabled
TSRNG: Temperature Indicator Range Selection bit⁽³⁾
1 = VOUT = VDD - 4VT (High Range)
0 = VOUT = VDD - 2VT (Low Range)
CDAFVR<1:0>: Comparator FVR Buffer Gain Selection bits
11 = Comparator FVR Buffer Gain is 4x, (4.096V)⁽²⁾
10 = Comparator FVR Buffer Gain is 2x, (2.048V)⁽²⁾
01 = Comparator FVR Buffer Gain is 1x, (1.024V)
00 = Comparator FVR Buffer is off
ADFVR<1:0>: ADC FVR Buffer Gain Selection bit
11 = ADC FVR Buffer Gain is 4x, (4.096V)⁽²⁾
10 = ADC FVR Buffer Gain is 2x, (2.048V)⁽²⁾
01 = ADC FVR Buffer Gain is 1x, (1.024V)
00 = ADC FVR Buffer is off
Note 1:
2:
3:
FVRRDY is always ‘1’ for PIC16F18855/75 devices only.
Fixed Voltage Reference output cannot exceed VDD.
See Section 17.0 “Temperature Indicator Module” for additional information.
 2016 Microchip Technology Inc.
Preliminary
DS40001824A-page 267