PIC12F635-E/MD MICROCHIP [Microchip Technology], PIC12F635-E/MD Datasheet - Page 86
PIC12F635-E/MD
Manufacturer Part Number
PIC12F635-E/MD
Description
8/14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12F635-EMD.pdf
(234 pages)
- Current page: 86 of 234
- Download datasheet (5Mb)
PIC12F635/PIC16F636/639
REGISTER 7-5:
FIGURE 7-10:
DS41232D-page 84
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
V
DD
R/W-0
VREN
Comparator
CV
REF
VREN
Input
VREN: CV
1 = CV
0 = CV
Unimplemented: Read as ‘0’
VRR: CV
1 = Low range
0 = High range
Unimplemented: Read as ‘0’
VR<3:0>: CV
When VRR = 1: CV
When VRR = 0: CV
to
U-0
—
VRCON: VOLTAGE REFERENCE CONTROL REGISTER
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
REF
REF
REF
REF
circuit powered on
circuit powered down, no I
VR<3:0>
Range Selection bit
REF
16-1 Analog
W = Writable bit
‘1’ = Bit is set
Enable bit
8R
MUX
15
14
Value Selection bits (0
R/W-0
2
1
0
VRR
REF
REF
(1)
= (VR<3:0>/24) * V
= V
R
DD
VREN
VR<3:0> = 0000
VRR
/4 + (VR<3:0>/32) * V
U-0
—
R
DD
drain and CV
16 Stages
DD
VR<3:0>
Note 1: Care should be taken to ensure V
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
VR3
DD
within the comparator common mode input
range. See Section 15.0 “Electrical Specifica-
tions” for more detail.
REF
R
15)
= V
R/W-0
SS
VR2
R
.
© 2007 Microchip Technology Inc.
x = Bit is unknown
R/W-0
8R
VR1
REF
remains
R/W-0
VR0
VRR
bit 0
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