Datasheet

Section 20 D/A Converter
(This function is not available in the H8S/2695)
Page 930 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
20.2 Register Descriptions
20.2.1 D/A Data Registers 0 to 3 (DADR0 to DADR3)
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
R/W
0
0
R/W
2
0
R/W
1
0
R/W
Bit
Initial value
R/W
:
:
:
D/A data registers 0 to 3 (DADR0 to DADR3) are 8-bit readable/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 hardware standby mode.
20.2.2 D/A Control Register 01 and 23 (DACR01 and DACR23)
7
DAOE1
0
R/W
6
DAOE0
0
R/W
5
DAE
0
R/W
4
—
1
—
3
—
1
—
0
—
1
—
2
—
1
—
1
—
1
—
Bit
Initial value
R/W
:
:
:
DACR01 and DACR23 are an 8-bit readable/writable register that controls the operation of the
D/A converter module.
DACR01 and DACR23 are 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.
Bit 7
DAOE1 Description
0 Analog output DA1 (DA3) is disabled (Initial value)
1 D/A conversion is enabled on channel 1. Analog output DA1 (DA3) is enabled