Renesas Stereo System SH7709S Manual De Usuario
Rev. 5.00, 09/03, page 613 of 760
Section 20 A/D Converter
20.1
Overview
The SH7709S includes a 10-bit successive-approximation A/D converter allowing selection of up
to eight analog input channels.
to eight analog input channels.
20.1.1
Features
A/D converter features are listed below.
•
10-bit resolution
•
Eight input channels
•
High-speed conversion
Conversion time: maximum 15
µ
s per channel (P
φ
= 33 MHz operation)
•
Three conversion modes
Single mode: A/D conversion on one channel
Multi mode: A/D conversion on one to four channels
Scan mode: Continuous A/D 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.
channels.
•
Sample-and-hold function
•
A/D conversion can be externally triggered
•
A/D interrupt requested at the end of conversion
At the end of A/D conversion, an A/D end interrupt (ADI) can be requested.