Microchip Technology AC244055 Data Sheet

PIC16(L)F1938/9

DS40001574C-page 168

 2011-2013 Microchip Technology Inc.

17.7

Register Definitions: DAC Control

TABLE 17-1:

SUMMARY OF REGISTERS ASSOCIATED WITH THE DAC MODULE

REGISTER 17-1:

DACCON0: VOLTAGE REFERENCE CONTROL REGISTER 0

R/W-0/0

U-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

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

bit 6

DACLPS:

DAC Low-Power Voltage State Select bit

1 = DAC Positive 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

bit 4

Unimplemented:

Read as ‘0’

bit 3-2

DACPSS<1:0>:

DAC Positive Source Select bits

11 = Reserved, do not use
10 = FVR Buffer2 output
01 = V

REF

+ pin

00 = V

bit 1

Unimplemented:

Read as ‘0’

bit 0

DACNSS:

DAC Negative Source Select bits

1 = V

REF

0 = V

REGISTER 17-2:

DACCON1: VOLTAGE REFERENCE CONTROL REGISTER 1

U-0

R/W-0/0

—

DACR<4:0>

bit 7

bit 0

Legend:
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

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Register

on page

FVRCON

FVREN

FVRRDY

TSEN

TSRNG

CDAFVR<1:0>

ADFVR<1:0>

148

DACCON0

DACEN

DACLPS

DACOE

—

DACPSS<1:0>

—

DACNSS

168

DACCON1

—

DACR<4:0>

168

Legend:

— = Unimplemented location, read as ‘0’. Shaded cells are not used with the DAC module.