PIC16F1934-ESLASHML datasheet(158/418 Pages) MICROCHIP

158 / 418 page

PIC16F193X/LF193X

DS41364A-page 156

Preliminary

TABLE 14-1:

REGISTERS ASSOCIATED WITH VOLTAGE REFERENCE

FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER

R/W-0/0

R-q/q

R/W-0/0

FVREN

FVRRDY(1)

—

CDAFVR1

CDAFVR0

ADFVR1

ADFVR0

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

= Fixed Voltage Reference is disabled

= Fixed Voltage Reference is enabled

bit 6

FVRRDY: Fixed Voltage Reference Ready Flag bit(1)

= Fixed Voltage Reference output is not active or stable

= Fixed Voltage Reference output is ready for use

bit 5-4

Reserved: Read as ‘0’. Maintain these bits clear.

bit 3-2

CDAFVR<1:0>: Comparator and D/A Converter Fixed Voltage Reference Selection bit

= Comparator and D/A Converter Fixed Voltage Reference Peripheral output is off.

= Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)

= Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)(2)

= Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)(2)

bit 1-0

ADFVR<1:0>: A/D Converter Fixed Voltage Reference Selection bit

= A/D Converter Fixed Voltage Reference Peripheral output is off.

= A/D Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)

= A/D Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)(2)

= A/D Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)(2)

Note 1:

FVRRDY is always ‘1’ on regulated parts (PIC16F193X).

Fixed Voltage Reference output cannot exceed VDD.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

on page

FVRCON

FVREN

FVRRDY

TSEN

TSRNG

CDAFVR1

CDAFVR0

ADFVR1

ADFVR0

156

Legend:

Shaded cells are not used with the voltage reference.

PIC16F1934-E/ML Datasheet(PDF) 158 Page - Microchip Technology

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