Rev. 3.0, 03/01, page 333 of 390
Section 19 A/D Converter
19.1
Overview
The controller includes a 10-bit successive-approximations A/D converter with a wide selection of
up to four analog input channels.
19.1.1
Features
•
A/D converter features are listed below:
•
10-bit resolution
•
Four input channels
•
High-speed conversion
•
Conversion time: maximum 10
µ
s per channel (with 1MHz peripheral clock)
•
Two conversion modes are supported.
•
Single mode: one channel A/D conversion
•
Scan mode: continuos conversions are operated in cycles from one to four channels
•
Four 16-bit data registers
•
A/D conversion results are transferred for storage into data registers in correspondences to the
selected channels.
•
Sample-and- hold function
•
A/D conversion can be triggered by internal timer 0
•
A/D interrupt requested at the end of the conversion
At the end of A/D conversion, an A/D end interrupt (ADI) can be requested
•
Provides STANDBY mode to reduce Power Consumption
Summary of Contents for HD64465
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