h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 600

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 18 D/A Converter
18.2
18.2.1
D/A data registers 0 and 1 (DADR0 and 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
DACR is an 8-bit readable/writable register that controls the operation of the D/A converter
module.
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.
Bit 7
DAOE1
0
1
Rev. 4.00 Jun 06, 2006 page 546 of 1004
REJ09B0301-0400
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Register Descriptions
D/A Data Registers 0 and 1 (DADR0, DADR1)
D/A Control Register (DACR)
Description
Analog output DA1 is disabled
D/A conversion is enabled on channel 1. Analog output DA1 is enabled
DAOE1
R/W
R/W
7
0
7
0
DAOE0
R/W
R/W
6
0
6
0
DAE
R/W
R/W
5
0
5
0
R/W
—
—
4
0
4
1
R/W
—
—
3
0
3
1
R/W
—
—
2
0
2
1
R/W
—
—
1
0
1
1
(Initial value)
R/W
—
—
0
0
0
1