HD6432345 Datasheet, PDF (541/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

15.2 Register Descriptions
15.2.1 D/A Data Registers 0 and 1 (DADR0, DADR1)
Bit
:
7
6
5
4
3
2
1
0
Initial value:
0
R/W
: R/W
0
0
R/W R/W
0
0
0
R/W R/W R/W
0
0
R/W R/W
DADR0 and DADR1 are 8-bit readable/writable registers that store data for conversion.
Whenever output is enabled, the values in DADR0 and DADR1 are converted and output from the
analog output pins.
DADR0 and DADR1 are each initialized to H'00 by a reset and in hardware standby mode.
15.2.2 D/A Control Register (DACR)
Bit
:
7
6
5
4
3
2
1
0
DAOE1 DAOE0 DAE
—
—
—
—
—
Initial value:
0
0
0
1
1
1
1
1
R/W
: R/W
R/W 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 hardware standby mode.
Bit 7—D/A Output Enable 1 (DAOE1): Controls D/A conversion and analog output for channel
1.
Bit 7
DAOE1
0
1
Description
Analog output DA1 is disabled
Channel 1 D/A conversion is enabled; analog output DA1 is enabled
(Initial value)
528