Microchip Technology MCP1630DM-DDBS1 Data Sheet
©
2007 Microchip Technology Inc.
DS41211D-page 59
PIC12F683
FIGURE 8-7:
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
TABLE 8-2:
SUMMARY OF REGISTERS ASSOCIATED WITH THE COMPARATOR AND VOLTAGE
REFERENCE MODULES
REFERENCE MODULES
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
ANSEL
—
ADCS2
ADCS1
ADCS0
ANS3
ANS2
ANS1
ANS0
-000 1111
-000 1111
CMCON0
—
COUT
—
CINV
CIS
CM2
CM1
CM0
-0-0 0000
-0-0 0000
CMCON1
—
—
—
—
—
—
T1GSS
CMSYNC
---- --10
---- --10
INTCON
GIE
PEIE
T0IE
INTE
GPIE
T0IF
INTF
GPIF
0000 0000
0000 000x
PIE1
EEIE
ADIE
CCP1IE
—
CMIE
OSFIE
TMR2IE
TMR1IE
000- 0000
0000 0000
PIR1
EEIF
ADIF
CCP1IF
—
CMIF
OSFIF
TMR2IF
TMR1IF
000- 0000
000- 0000
GPIO
—
—
GP5
GP4
GP3
GP2
GP1
GP0
--xx xxxx
--uu uuuu
TRISIO
—
—
TRISIO5 TRISIO4 TRISIO3 TRISIO2 TRISIO1
TRISIO0
--11 1111
--11 1111
VRCON
VREN
—
VRR
—
VR3
VR2
VR1
VR0
0-0- 0000
-0-0 0000
Legend:
x
= unknown,
u
= unchanged,
-
= unimplemented, read as ‘
0
’. Shaded cells are not used for comparator.
VRR
8R
VR<3:0>
(1)
16-1 Analog
8R
R
R
R
R
CV
REF
to
16 Stages
Comparator
Input
VREN
V
DD
MUX
VR<3:0> =
0000
VREN
VRR
0
1
2
14
15
Note 1:
Care should be taken to ensure V
REF
remains within the comparator Common
mode input range. See Section 15.0
“Electrical Specifications” for more detail.
mode input range. See Section 15.0
“Electrical Specifications” for more detail.