r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1023
r4f2426
Manufacturer Part Number
r4f2426
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2426.pdf
(1302 pages)
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18.4
The D/A converter includes D/A conversion circuits for two channels, each of which can operate
independently. When DAOE bit in DACR23 is set to 1, D/A conversion is enabled and the
conversion result is output. The following shows an example of D/A conversion on channel 2.
Figure 18.2 shows the timing of this operation.
1. Write the conversion data to DADR2.
2. Set the DAOE2 bit in DACR23 to 1. D/A conversion is started. The conversion result is output
3. If DADR2 is written to again, the conversion is immediately started. The conversion result is
4. If the DAOE2 bit is cleared to 0, analog output is disabled.
from the analog output pin DA2 after the conversion time t
result is continued to output until DADR2 is written to again or the DAOE2 bit is cleared to 0.
The output value is expressed by the following formula:
output after the conversion time t
DADR contents
Operation
256
× Vref
DCONV
has elapsed.
Rev. 1.00 Sep. 19, 2008 Page 995 of 1270
DCONV
has elapsed. The conversion
Section 18 D/A Converter
REJ09B0466-0100
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