MA240029 Microchip Technology, MA240029 Datasheet - Page 322

• Manufacturer Part Number: MA240029
• Description: Daughter Cards & OEM Boards PIC24FJ128GA310 Gen Purpose PIM
• Manufacturer: Microchip Technology

Specifications of MA240029

• Rohs: yes
• Product: Daughter Cards
• Core: PIC
• Description/function: Plug-in module
• Interface Type: I2C, SPI
• Tool Is For Evaluation Of: PIC24FJ128GA310
• For Use With: Explorer 16 Development Board

PIC24FJ128GA310 FAMILY
REGISTER 26-1:
DS39996F-page 322
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-11
bit 10
bit 9-8
bit 7
bit 6
bit 5
bit 4
bit 3-0
CVREN
R/W-0
U-0
—
Unimplemented: Read as ‘0’
CVREFP: Voltage Reference Select bit (valid only when CREF is ‘1’)
1 = V
0 = The CVR (4-bit DAC) within this module provides the the reference voltage to the comparators
CVREFM<1:0>: Band Gap Reference Source Select bits (valid only when CCH<1:0> = 11)
00 = Band gap voltage is provided as an input to the comparators
01 = Band gap voltage, divided by two, is provided as an input to the comparators
10 = Band gap voltage, divided by six, is provided as an input to the comparators
11 = V
CVREN: Comparator Voltage Reference Enable bit
1 = CV
0 = CV
CVROE: Comparator V
1 = CV
0 = CV
CVRR: Comparator V
1 = CV
0 = CV
CVRSS: Comparator V
1 = Comparator reference source, CV
0 = Comparator reference source, CV
CVR<3:0>: Comparator V
When CVRR = 1:
CV
When CVRR = 0:
CV
CVROE
REF
REF
R/W-0
U-0
—
REF
CVRCON: COMPARATOR VOLTAGE REFERENCE CONTROL REGISTER
= (CVR<3:0>/24)  (CV
= 1/4  (CV
REF
REF
REF
REF
REF
RSRC
RSRC
+ is used as a reference voltage to the comparators
+ pin is provided as an input to the comparators
circuit is powered on
circuit is powered down
voltage level is output on the CV
voltage level is disconnected from the CV
range should be 0 to 0.625 CV
range should be 0.25 to 0.719 CV
W = Writable bit
‘1’ = Bit is set
R/W-0
CVRR
RSRC
U-0
—
REF
REF
REF
) + (CVR<3:0>/32)  (CV
Range Selection bit
REF
Source Selection bit
Output Enable bit
Value Selection 0  CVR<3:0>  15 bits
RSRC
CVRSS
R/W-0
U-0
—
)
RSRC
RSRC
RSRC
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
REF
= V
= AV
RSRC
REF
R/W-0
CVR3
RSRC
pin
DD
U-0
—
with CV
+ – V
– AV
with CV
REF
)
REF
SS
pin
RSRC
-
RSRC
CVREFP
R/W-0
R/W-0
CVR2
/24 step size
/32 step size
 2010-2011 Microchip Technology Inc.
x = Bit is unknown
CVREFM1
R/W-0
R/W-0
CVR1
CVREFM0
R/W-0
R/W-0
CVR0
bit 8
bit 0