HD64F2145 Datasheet, PDF (595/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

20.3.2 D/A Control Register (DACR)
DACR controls D/A converter operation.
Bit Bit Name Initial Value R/W Description
7 DAOE1 0
R/W D/A Output Enable 1
Controls D/A conversion and analog output.
0: Analog output DA1 is disabled
1: D/A conversion for channel 1 and analog output DA1
are enabled
6 DAOE0 0
R/W D/A Output Enable 0
Controls D/A conversion and analog output.
0: Analog output DA0 is disabled
1: D/A conversion for channel 0 and analog output DA0
are enabled
5 DAE
0
R/W D/A Enable
Controls D/A conversion in conjunction with the DAOE0
and DAOE1 bits. When the DAE bit is cleared to 0, D/A
conversion for channels 0 and 1 is controlled individually.
When the DAE bit is set to 1, D/A conversion for
channels 0 and 1 are controlled as one. Conversion
result output is controlled by the DAOE0 and DAOE1
bits. For details, see table 20.2 below.
4—
All 1
R Reserved
to
These bits are always read as 1 and cannot be modified.
0
Table 20.2 D/A Channel Enable
Bit 7
DAOE1
0
Bit 6
DAOE0
0
1
Bit 5
DAE
—
0
1
1
0
0
1
1
—
Description
Disables D/A conversion
Enables D/A conversion for channel 0
Disables D/A conversion for channel 1
Enables D/A conversion for channels 0 and 1
Disables D/A conversion for channel 0
Enables D/A conversion for channel 1
Enables D/A conversion for channels 0 and 1
Enables D/A conversion for channels 0 and 1
Rev. 2.0, 08/02, page 555 of 788