3069RF-ZTAT Datasheet, PDF (591/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

DADR0
write cycle
DACR
write cycle
DADR0
write cycle
DACR
write cycle
φ
Address
DADR0
Conversion data 1
Conversion data 2
DAOE0
DA ₀
High-impedance state
Conversion
result 1
Conversion
result 2
[Legend]
t _DCONV : D/A conversion time
t _DCONV
t _DCONV
Figure 16.2 Example of D/A Converter Operation
16.4 D/A Output Control
In the H8/3069R, D/A converter output can be enabled or disabled in software standby mode.
When the DASTE bit is set to 1 in DASTCR, D/A converter output is enabled in software standby
mode. The D/A converter registers retain the values they held prior to the transition to software
standby mode.
When D/A output is enabled in software standby mode, the reference supply current is the same as
during normal operation.
Rev. 5.0, 09/04, page 569 of 978