PIC16F707 Datasheet, PDF (90/284 Pages) Microchip Technology – 40/44-Pin, Flash Microcontrollers with nanoWatt XLP and mTouch™ Technology

PIC16F707/PIC16LF707
REGISTER 10-1: FVRCON: FIXED VOLTAGE REFERENCE REGISTER
R-q
FVRRDY⁽¹⁾
bit 7
R/W-0/0
FVREN
R/W-0/0
—
R/W-0/0
—
R/W-0/0
R/W-0/0
CDAFVR1⁽²⁾ CDAFVR0⁽²⁾
R/W-0/0
ADFVR1⁽²⁾
R/W-0/0
ADFVR0⁽²⁾
bit 0
Legend:
R = Readable bit
W = Writable bit
-n = Value at POR
‘1’ = Bit is set
q = Value depends on condition
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5-4
bit 3-2
bit 1-0
FVRRDY: Fixed Voltage Reference Ready Flag bit⁽¹⁾
0 = Fixed Voltage Reference output is not active or stable
1 = Fixed Voltage Reference output is ready for use
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
Reserved: Read as ‘0’. Maintain these bits clear
CDAFVR<1:0>: Cap Sense and D/A Converter Fixed Voltage Reference Selection bit⁽²⁾
00 = CSM and D/A Converter Fixed Voltage Reference Peripheral output is off.
01 = CSM and D/A Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = CSM and D/A Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = CSM and D/A Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)
ADFVR<1:0>: A/D Converter Fixed Voltage Reference Selection bit⁽²⁾
00 = A/D Converter Fixed Voltage Reference Peripheral output is off.
01 = A/D Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = A/D Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = A/D Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)
Note 1: FVRRDY is always ‘1’ on PIC16F707 devices.
2: Fixed Voltage Reference output cannot exceed VDD.
TABLE 10-1: REGISTERS ASSOCIATED WITH VOLTAGE REFERENCE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
FVRCON FVRRDY FVREN Reserved Reserved CDAFVR1 CDAFVR0 ADFVR1 ADFVR0 q000 0000 q000 0000
Legend: Shaded cells are not used by the voltage reference module.
DS41418A-page 90
Preliminary
 2010 Microchip Technology Inc.