16.2
Register Descriptions
16.2.1 D/A Data Registers 0 and 1 (DADR0, DADR1)
Bit
7
6
5
4
3
2
1
0
Initial value
Read/Write
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
D/A data registers 0 and 1 (DADR0 and DADR1) are 8-bit readable and writable registers that
store data to be converted. When analog output is enabled, the value in the D/A data register is
converted and output continuously at the analog output pin.
The D/A data registers are initialized to H'00 by a reset and in the standby modes.
16.2.2 D/A Control Register (DACR)
Bit
7
6
5
4
—
1
3
—
1
2
—
1
1
—
1
0
—
1
DAOE1 DAOE0
DAE
0
Initial value
Read/Write
0
0
R/W
R/W
R/W
—
—
—
—
—
DACR is an 8-bit readable and writable register that controls the operation of the D/A converter
module.
DACR is initialized to H'1F by a reset and in the standby modes.
Bit 7—D/A Output Enable 1 (DAOE1): Controls analog output from the D/A converter.
Bit 7: DAOE1
Description
0
1
Analog output at DA1 is disabled.
D/A conversion is enabled on channel 1. Analog output is enabled at DA1.
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HITACHI [ HITACHI SEMICONDUCTOR ]
