PIC16F1503T-I 查看數據表（PDF） - Microchip Technology
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PIC16F1503T-I Datasheet PDF : 352 Pages
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PIC16(L)F1503
13.3 Register Definitions: FVR Control
REGISTER 13-1: FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER
R/W-0/0
FVREN(1)
bit 7
R-q/q
FVRRDY(2)
R/W-0/0
TSEN(3)
R/W-0/0
TSRNG(3)
R/W-0/0
R/W-0/0
CDAFVR<1:0>(1)
R/W-0/0
R/W-0/0
ADFVR<1:0>(1)
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)
1 = Fixed Voltage Reference is enabled
0 = Fixed Voltage Reference is disabled
FVRRDY: Fixed Voltage Reference Ready Flag bit(2)
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(1)
11 = Comparator FVR Buffer Gain is 4x, with output voltage = 4x VFVR (4.096V nominal)(4)
10 = Comparator FVR Buffer Gain is 2x, with output voltage = 2x VFVR (2.048V nominal)(4)
01 = Comparator FVR Buffer Gain is 1x, with output voltage = 1x VFVR (1.024V nominal)
00 = Comparator FVR Buffer is off
ADFVR<1:0>: ADC FVR Buffer Gain Selection bit(1)
11 = ADC FVR Buffer Gain is 4x, with output voltage = 4x VFVR (4.096V nominal)(4)
10 = ADC FVR Buffer Gain is 2x, with output voltage = 2x VFVR (2.048V nominal)(4)
01 = ADC FVR Buffer Gain is 1x, with output voltage = 1x VFVR (1.024V nominal)
00 = ADC FVR Buffer is off
Note 1:
2:
3:
4:
To minimize current consumption when the FVR is disabled, the FVR buffers should be turned off by clear-
ing the Buffer Gain Selection bits.
FVRRDY is always ‘1’ for the PIC16F1503 devices.
See Section 14.0 “Temperature Indicator Module” for additional information.
Fixed Voltage Reference output cannot exceed VDD.
TABLE 13-2: SUMMARY OF REGISTERS ASSOCIATED WITH THE FIXED VOLTAGE REFERENCE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
FVRCON
FVREN FVRRDY
TSEN
TSRNG
CDAFVR>1:0>
Legend: Shaded cells are unused by the Fixed Voltage Reference module.
Bit 1
Bit 0
ADFVR<1:0>
Register
on page
110
DS40001607D-page 110
2011-2015 Microchip Technology Inc.
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