Section 9. A/D Converter; Overview; Features - Hitachi H8/329 Series Hardware Manual

9.1 Overview

The H8/329 Series includes an analog-to-digital converter module with eight input channels. A/D
conversion is performed by the successive approximations method with 8-bit resolution.

9.1.1 Features

The features of the on-chip A/D module are:
• 8-bit resolution
• Eight analog input channels
• Rapid conversion
Conversion time is 12.2µs per channel (minimum) with a 10MHz system clock
• External triggering can be selected
• Single and scan modes
— Single mode: A/D conversion is performed once.
— Scan mode: A/D conversion is performed in a repeated cycle on one to four channels.
• Sample-and-hold function
• Four 8-bit data registers
These registers store A/D conversion results for up to four channels.
• A CPU interrupt (ADI) can be requested at the completion of each A/D conversion cycle.

Section 9. A/D Converter

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