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PIC12F615 датащи(PDF) 76 Page - Microchip Technology

номер детали PIC12F615
подробное описание детали  8-Pin, Flash-Based 8-Bit CMOS Microcontrollers
PDF  212 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC12F615 датащи(HTML) 76 Page - Microchip Technology

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PIC12F609/615/617/12HV609/615
DS41302D-page 76
 2010 Microchip Technology Inc.
REGISTER 9-3:
VRCON: VOLTAGE REFERENCE CONTROL REGISTER
R/W-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
CMVREN
—
VRR
FVREN
VR3
VR2
VR1
VR0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
CMVREN: Comparator Voltage Reference Enable bit(1, 2)
1
= CVREF circuit powered on and routed to CVREF input of the Comparator
0
= 0.6 Volt constant reference routed to CVREF input of the Comparator
bit 6
Unimplemented: Read as ‘0’
bit 5
VRR: CVREF Range Selection bit
1
= Low range
0
= High range
bit 4
FVREN: 0.6V Reference Enable bit(2)
1
= Enabled
0
= Disabled
bit 3-0
VR<3:0>: Comparator Voltage Reference CVREF Value Selection bits (0
 VR<3:0>  15)
When VRR = 1: CVREF = (VR<3:0>/24) * VDD
When VRR = 0: CVREF = VDD/4 + (VR<3:0>/32) * VDD
Note 1:
When CMVREN is low, the CVREF circuit is powered down and does not contribute to IDD current.
2:
When CMVREN is low and the FVREN bit is low, the CVREF signal should provide Vss to the comparator.



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