D/A Converter Mode Register (Dam); D/A Conversion Value Setting Register I (Dacsi) (I = 0, 1) - Renesas RL78/G1P Hardware User Manual

RL78/G1P

10.3.3 D/A converter mode register (DAM)

This register controls the operation of the D/A converter.
The DAM register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Address: FFF5CH After reset: 00H
Symbol 7

DAM
DACEi
0
1
DAMDi
0
1
Remark i = 0, 1

10.3.4 D/A conversion value setting register i (DACSi) (i = 0, 1)

This register is used to set the analog voltage value to be output to the ANO0 and ANO1 pins when the D/A converter
is used.
The DACSi register can be read by a 16-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 10-5. Format of D/A Conversion Value Setting Register i (DACSi) (i = 0, 1)
Address: FFF58H, FFF59H (DACS0), FFF5AH, FFF5BH (DACS1)
Symbol 15 14
DACSi
Remark The relation between the resolution and analog output voltage (VANOi) of the D/A converter are as follows.
VANOi = Reference voltage for D/A converter × (DACSi)/1024
When the D/A converter is not used, set the DACEi bit to 0 (output disable) and set the DACSi register to 00H to
prevent current from flowing into the R-2R resistor ladder to reduce unnecessary current consumption.
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Figure 10-4. Format of D/A Converter Mode Register (DAM)
R/W
6 <5>

DACE1
Stops D/A conversion operation
Enables D/A conversion operation
Normal mode
Real-time output mode
13 12 11 10
<4> 3

DACE0
D/A conversion operation control
D/A converter operation mode selection
After reset: 0000H R/W
9 8 7 6
DAC DAC DAC DAC
Si9 Si8 Si7 Si6
CHAPTER 10 D/A CONVERTER
2 1

DAMD1
5 4 3 2
DAC DAC DAC DAC
Si5 Si4 Si3 Si2
0
DAMD0
1 0
DAC DAC
Si1 Si0
303