Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SOIC 14 8-Bit 32 MHz I/O number 11

141

142

143

144

145

146

147

148

149

150

PIC16(L)F1824/1828

DS41419D-page 148  2010-2012 Microchip Technology Inc.

TABLE 14-1: SUMMARY OF REGISTERS ASSOCIATED WITH THE FIXED VOLTAGE REFERENCE

R/W-0/0 R-q/q R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0

FVREN FVRRDY

(1)

TSEN TSRNG CDAFVR<1:0> ADFVR<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set ‘0’ = Bit is cleared q = Value depends on condition

bit 7 FVREN: Fixed Voltage Reference Enable bit

0 = Fixed Voltage Reference is disabled

1 = Fixed Voltage Reference is enabled

bit 6 FVRRDY: Fixed Voltage Reference Ready Flag bit

(1)

0 = Fixed Voltage Reference output is not ready or not enabled

1 = Fixed Voltage Reference output is ready for use

bit 5 TSEN: Temperature Indicator Enable bit

(3)

0 = Temperature Indicator is disabled

1 = Temperature Indicator is enabled

bit 4 TSRNG: Temperature Indicator Range Selection bit

(3)

0 =VOUT = VDD - 2VT (Low Range)

1 =V

OUT = VDD - 4VT (High Range)

bit 3-2 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)

(2)

11 = Comparator and DAC Fixed Voltage Reference Peripheral output is 4x (4.096V)

(2)

bit 1-0 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)

(2)

11 = ADC Fixed Voltage Reference Peripheral output is 4x (4.096V)

(2)

Note 1: FVRRDY is always ‘1’ on devices with the LDO (PIC16F1824/1828).

2: Fixed Voltage Reference output cannot exceed V

DD.

3: See Section 15.0 “Temperature Indicator Module” for additional information.

Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

on page

FVRCON FVREN FVRRDY

TSEN TSRNG CDAFVR<1:0> ADFVR<1:0> 148

Legend: Shaded cells are unused by the Fixed Voltage Reference module.