HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 557

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

16.2 Register Descriptions
16.2.1 D/A Data Registers 0 and 1 (DADR0/1)
The D/A data registers (DADR0 and DADR1) are 8-bit readable/writable registers that store the
data to be converted. When analog output is enabled, the D/A data register values are constantly
converted and output at the analog output pins.
The D/A data registers are initialized to H'00 by a reset and in standby mode.
16.2.2 D/A Control Register (DACR)
DACR is an 8-bit readable/writable register that controls the operation of the D/A converter.
DACR is initialized to H'1F by a reset and in standby mode.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
DAOE1
R/W
R/W
7
0
7
0
DAOE0
R/W
R/W
D/A output enable 1
Controls D/A conversion and analog output
6
0
6
0
DAE
R/W
R/W
D/A output enable 0
Controls D/A conversion and analog output
5
0
5
0
547
R/W
D/A enable
Controls D/A conversion
—
—
4
0
4
1
R/W
—
—
3
0
3
1
R/W
—
—
2
0
2
1
R/W
—
—
1
0
1
1
R/W
—
—
0
0
0
1