PIC16F1938_13 Datasheet, PDF (168/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
17.7 Register Definitions: DAC Control
REGISTER 17-1: DACCON0: VOLTAGE REFERENCE CONTROL REGISTER 0
R/W-0/0
R/W-0/0
R/W-0/0
U-0
R/W-0/0
R/W-0/0
U-0
DACEN
DACLPS
DACOE
—
DACPSS<1:0>
—
bit 7
R/W-0/0
DACNSS
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7
bit 6
bit 5
bit 4
bit 3-2
bit 1
bit 0
DACEN: DAC Enable bit
1 = DAC is enabled
0 = DAC is disabled
DACLPS: DAC Low-Power Voltage State Select bit
1 = DAC Positive reference source selected
0 = DAC Negative reference source selected
DACOE: DAC Voltage Output Enable bit
1 = DAC voltage level is also an output on the DACOUT pin
0 = DAC voltage level is disconnected from the DACOUT pin
Unimplemented: Read as ‘0’
DACPSS<1:0>: DAC Positive Source Select bits
11 = Reserved, do not use
10 = FVR Buffer2 output
01 = VREF+ pin
00 = VDD
Unimplemented: Read as ‘0’
DACNSS: DAC Negative Source Select bits
1 = VREF-
0 = VSS
REGISTER 17-2: DACCON1: VOLTAGE REFERENCE CONTROL REGISTER 1
U-0
—
bit 7
U-0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
—
—
DACR<4:0>
R/W-0/0
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7-5
bit 4-0
Unimplemented: Read as ‘0’
DACR<4:0>: DAC Voltage Output Select bits
TABLE 17-1: SUMMARY OF REGISTERS ASSOCIATED WITH THE DAC MODULE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FVRCON
FVREN FVRRDY TSEN TSRNG
CDAFVR<1:0>
ADFVR<1:0>
DACCON0
DACEN DACLPS DACOE
—
DACPSS<1:0>
—
DACNSS
DACCON1
—
—
—
DACR<4:0>
Legend: — = Unimplemented location, read as ‘0’. Shaded cells are not used with the DAC module.
Register
on page
148
168
168
DS40001574C-page 168
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