PIC16F688

Manufacturer Part NumberPIC16F688
ManufacturerMicrochip Technology Inc.
PIC16F688 datasheet
 
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PIC16F688
FIGURE 7-8:
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
8R
V
DD
16-1 Analog
MUX
VREN
15
14
CV
to
REF
Comparator
2
Input
1
0
(1)
VR<3:0>
TABLE 7-2:
SUMMARY OF REGISTERS ASSOCIATED WITH THE COMPARATOR AND VOLTAGE
REFERENCE MODULES
Name
Bit 7
Bit 6
Bit 5
ANSEL
ANS7
ANS6
ANS5
CMCON0
C2OUT
C1OUT
C2INV
CMCON1
INTCON
GIE
PEIE
T0IE
PIE1
EEIE
ADIE
RCIE
PIR1
EEIF
ADIF
RCIF
PORTA
RA5
PORTC
RC5
TRISA
TRISA5 TRISA4 TRISA3 TRISA2
TRISC
TRISC5 TRISC4 TRISC3 TRISC2
VRCON
VREN
VRR
Legend:
x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used for comparator.
DS41203D-page 64
16 Stages
R
R
R
R
VREN
VR<3:0> = 0000
VRR
Note 1: Care should be taken to ensure V
within the comparator common mode input
range. See Section 14.0 “Electrical Specifica-
tions” for more detail.
Bit 4
Bit 3
Bit 2
Bit 1
ANS4
ANS3
ANS2
ANS1
C1INV
CIS
CM2
CM1
T1GSS
C2SYNC
INTE
RAIE
T0IF
INTF
C2IE
C1IE
OSFIE
TXIE
TMR1IE
C2IF
C1IF
OSFIF
TXIF
RA4
RA3
RA2
RA1
RC4
RC3
RC2
RC1
TRISA1
TRISC1
VR3
VR2
VR1
VRR
8R
remains
REF
Value on
Value on
Bit 0
all other
POR, BOR
Resets
ANS0
1111 1111
1111 1111
CM0
0000 0000
0000 0000
---- --10
---- --10
RAIF
0000 000x
0000 000x
0000 0000
0000 0000
TMR1IF
0000 0000
0000 0000
RA0
--x0 x000
--x0 x000
RC0
--xx 0000
--xx 0000
TRISA0
--11 1111
--11 1111
TRISC0
--11 1111
--11 1111
VR0
0-0- 0000
0-0- 0000
© 2007 Microchip Technology Inc.