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15.2
Register Descriptions
15.2.1
D/A Data Registers 0 and 1 (DADR0, DADR1)
Bit
Initial value
Read/Write
R/W
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.
When the DASTE bit is set to 1 in the D/A standby control register (DASTCR), the D/A registers
are not initialized in software standby mode.
15.2.2
D/A Control Register (DACR)
Bit
DAOE1
Initial value
Read/Write
R/W
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.
When the DASTE bit is set to 1 in the D/A standby control register (DASTCR), the D/A registers
are not initialized in software standby mode.
420
7
6
0
0
R/W
R/W
7
6
DAOE0
DAE
0
0
R/W
R/W
D/A output enable 0
Controls D/A conversion and analog output
D/A output enable 1
Controls D/A conversion and analog output
5
4
0
0
R/W
R/W
5
4
—
—
0
1
—
—
D/A enable
Controls D/A conversion
3
2
0
0
R/W
R/W
3
2
—
1
1
—
1
0
0
0
R/W
1
0
—
—
1
1
—
—
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