Section 15 A/D Converter; Overview; Features - Renesas F-ZTAT H8 Series Hardware Manual

15.1

Overview

The H8/3052BF includes a 10-bit successive-approximations A/D converter with a selection of up
to eight analog input channels.
When the A/D converter is not used, it can be halted independently to conserve power. For details
see section 20.6, Module Standby Function.
15.1.1

Features

A/D converter features are listed below.
• 10-bit resolution
• Eight input channels
• Selectable analog conversion voltage range
The analog voltage conversion range can be programmed by input of an analog reference
voltage at the V
REF
• High-speed conversion
Conversion time: maximum 5.4 µs per channel (with 25 MHz system clock)
• Two conversion modes
Single mode: A/D conversion of one channel
Scan mode: continuous conversion on one to four channels
• Four 16-bit data registers
A/D conversion results are transferred for storage into data registers corresponding to the
channels.
• Sample-and-hold function
• A/D conversion can be externally triggered
• A/D interrupt requested at end of conversion
At the end of A/D conversion, an A/D end interrupt (ADI) can be requested.

Section 15 A/D Converter

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Section 15 A/D Converter
Rev. 3.00 Mar 21, 2006 page 521 of 814
REJ09B0302-0300