HD64F3028F25 Datasheet, PDF (599/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

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 H8/3028 Group, 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. 2.00, 09/03, page 567 of 890