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Rev. 1.0, 07/01, page 253 of 372
Section 16 A/D Converter
This LSI includes a successive approximation type 10-bit A/D converter that allows up to eight
analog input channels to be selected. The block diagram of the A/D converter is shown in figure
16-1.
16.1 Features
•
10-bit resolution
•
Eight input channels
•
Conversion time: at least 4.4
µ
s per channel
(at 16-MHz operation)
•
Two operating modes
Single mode: Single-channel A/D conversion
Scan mode: Continuous A/D conversion on 1 to 4 channels
•
Four data registers
Conversion results are held in a data register for each channel
•
Sample-and-hold function
•
Two conversion start methods
Software
External trigger signal
•
Interrupt request
An A/D conversion end interrupt request (ADI) can be generated
ADCMS32A0000_000020010700