HD64F2638F20J Datasheet, PDF (758/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 18 D/A Converter
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
18.2 Register Descriptions
18.2.1 D/A Data Registers 0, 1 (DADR0, DADR1)
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
D/A data registers 0, 1 (DADR0, DADR1) 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.
18.2.2 D/A Control Register 01 (DACR01)
Bit
7
6
5
4
3
2
1
0
DAOE1 DAOE0 DAE
—
—
—
—
—
Initial value
0
0
0
1
1
1
1
1
Read/Write R/W
R/W
R/W
—
—
—
—
—
DACR01 is an 8-bit readable/writable register that controls the operation of the D/A converter
module.
DACR01 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.
Bit 7
DAOE1
0
1
Description
Analog output DA1 is disabled
(Initial value)
D/A conversion is enabled on channel 1. Analog output DA1 is enabled
Page 708 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010