Register Descriptions; D/A Data Registers 0 And 1 (Dadr0, Dadr1); D/A Control Register (Dacr) - Renesas H8S Series Hardware Manual

17.2

Register Descriptions

17.2.1

D/A Data Registers 0 and 1 (DADR0, DADR1)

Bit : 7
Initial value : 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.
17.2.2

D/A Control Register (DACR)

Bit : 7
DAOE1
Initial value : 0
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
Bit 6—D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output for channel 0.
Bit 6
DAOE0
0
1
6 5
0 0
R/W R/W
6 5
DAOE0 DAE
0 0
R/W R/W
Description
Analog output DA1 is disabled
Channel 1 D/A conversion is enabled; analog output DA1 is enabled
Description
Analog output DA0 is disabled
Channel 0 D/A conversion is enabled; analog output DA0 is enabled
4 3 2
0 0 0
R/W R/W R/W
4 3 2
— — —
1 1 1
— — —
1 0
0 0
R/W R/W
1 0
— —
1 1
— —
(Initial value)
(Initial value)
Rev.6.00 Oct.28.2004 page 557 of 1016
REJ09B0138-0600H