Microchip Technology AC244045 Data Sheet
PIC16(L)F1825/1829
DS41440C-page 166
2010-2012 Microchip Technology Inc.
17.7
DAC Control Registers
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
R/W-0/0
DACEN
DACLPS
DACOE
—
DACPSS<1:0>
—
DACNSS
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7
DACEN:
DAC Enable bit
1 = DAC is enabled
0 = DAC is disabled
0 = DAC is disabled
bit 6
DACLPS:
DAC Low-Power Voltage State Select bit
1 = DAC Positive reference source selected
0 = DAC Negative reference source selected
0 = DAC Negative reference source selected
bit 5
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
0 = DAC voltage level is disconnected from the DACOUT pin
bit 4
Unimplemented:
Read as ‘0’
bit 3-2
DACPSS<1:0>:
DAC Positive Source Select bits
00 = V
DD
01 = V
REF
+
10 = FVR Buffer2 output
11 = Reserved, do not use
11 = Reserved, do not use
bit 1
Unimplemented:
Read as ‘0’
bit 0
DACNSS:
DAC Negative Source Select bits
1 = V
REF
-
0 = V
SS
REGISTER 17-2:
DACCON1: VOLTAGE REFERENCE CONTROL REGISTER 1
U-0
U-0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
—
—
—
DACR<4:0>
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-5
Unimplemented:
Read as ‘0’
bit 4-0
DACR<4:0>:
DAC Voltage Output Select bits
V
OUT
= ((V
SRC
+) - (V
SRC
-))*(DACR<4:0>/(2
5
)) + V
SRC
-
Note 1:
The output select bits are always right justified to ensure that any number of bits can be used without
affecting the register layout.
affecting the register layout.