H8SLASH3028F datasheet(596/923 Pages) RENESAS

Part #	H8/3028F

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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596 / 923 page

Rev. 2.00, 09/03, page 566 of 890

16.3

Operation

The D/A converter has two built-in D/A conversion circuits that can perform conversion

independently.

D/A conversion is performed constantly while enabled in DACR. If the DADR0 or DADR1 value

is modified, conversion of the new data begins immediately. The conversion results are output

when bits DAOE0 and DAOE1 are set to 1.

An example of D/A conversion on channel 0 is given next. Timing is indicated in figure 16.2.

1. Data to be converted is written in DADR0.

2. Bit DAOE0 is set to 1 in DACR. D/A conversion starts and DA0 becomes an output pin. The

converted result is output after the conversion time.

× VREF

The output value is

DADR contents

256

Output of this conversion result continues until the value in DADR0 is modified or the

DAOE0 bit is cleared to 0.

3. If the DADR0 value is modified, conversion starts immediately, and the result is output after

the conversion time.

4. When the DAOE0 bit is cleared to 0, DA0 becomes an input pin.

H8/3028F Datasheet(PDF) 596 Page - Renesas Technology Corp