PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 64

• Manufacturer Part Number: PIC12F609-I/PQTP
• Description: 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F609/615/12HV609/615
REGISTER 8-3:
DS41302A-page 62
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
Note 1:
CMVREN
R/W-0
2:
When CMVREN is low, the CV
When CMVREN is low and the FVREN bit is low, the CMVREF signal should provide Vss to the comparator.
CMVREN: Comparator Voltage Reference Enable bit
1 = CV
0 = 0.6 Volt constant reference routed to CMV
Unimplemented: Read as ‘0’
VRR: CV
1 = Low range
0 = High range
FVREN: 0.6V Reference Enable bit
1 = Enabled
0 = Disabled
VR<3:0>: Comparator Voltage Reference CV
When VRR = 1: CV
When VRR = 0: CV
U-0
—
VRCON: VOLTAGE REFERENCE CONTROL REGISTER
REF
REF
circuit powered on and routed to CV
Range Selection bit
W = Writable bit
‘1’ = Bit is set
R/W-0
VRR
REF
REF
= (VR<3:0>/24) * V
= V
REF
DD
/4 + (VR<3:0>/32) * V
circuit is powered down and does not contribute to I
FVREN
R/W-0
Preliminary
(2)
DD
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
REF
REF
R/W-0
REF
VR3
Value Selection bits (0
input of the Comparator
input of the Comparator
DD
(1, 2)
R/W-0
VR2
© 2006 Microchip Technology Inc.
x = Bit is unknown
VR<3:0>
R/W-0
VR1
DD
current.
15)
R/W-0
VR0
bit 0