PIC18F23K20_10 Datasheet, PDF (292/456 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC18F2XK20/4XK20
REGISTER 21-2: CVRCON2: COMPARATOR VOLTAGE REFERENCE CONTROL 2 REGISTER
R/W-0
R-0
U-0
U-0
U-0
U-0
U-0
U-0
FVREN
FVRST
—
—
—
—
—
—
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5-0
FVREN: Fixed Voltage Reference Enable bit
1 = FVR circuit powered on
0 = FVR circuit not enabled by FVREN. Other peripherals may enable FVR.
FVRST: Fixed Voltage Stable Status bit
1 = FVR is stable and can be used.
0 = FVR is not stable and should not be used.
Unimplemented: Read as ‘0’.
TABLE 21-1: REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CVRCON CVREN CVROE CVRR CVRSS CVR3 CVR2
CVRCON2 FVREN FVRST
—
—
—
—
CM1CON0 C1ON C1OUT C1OE C1POL C1SP
C1R
CM2CON0 C2ON C2OUT C2OE C2POL C2SP
C2R
CM2CON1 MC1OUT MC2OUT C1RSEL C2RSEL —
—
TRISA
TRISA7⁽¹⁾ TRISA6⁽¹⁾ PORTA Data Direction Control Register
Legend: Shaded cells are not used with the comparator voltage reference.
Note 1: PORTA pins are enabled based on oscillator configuration.
CVR1
—
C1CH1
C2CH1
—
CVR0
—
C1CH0
C2CH0
—
Reset
Values
on page
62
61
62
62
63
62
DS41303G-page 292
 2010 Microchip Technology Inc.