Register Descriptions; D/A Data Registers 0 To 3 (Dadr0 To Dadr3); D/A Control Register 01 And 23 (Dacr01 And Dacr23) - Renesas H8S/2633 Series Hardware Manual

20.2

Register Descriptions

20.2.1

D/A Data Registers 0 to 3 (DADR0 to DADR3)

Bit :
Initial value :
R/W : 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)

Bit :
DAOE1
Initial value :
R/W : 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
1 D/A conversion is enabled on channel 1. Analog output DA1 (DA3) is enabled
886
7 6 5
0 0 0
R/W R/W
7
6 5
DAOE0 DAE
0 0 0
R/W R/W
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)