SH7052 Datasheet, PDF (585/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

Section 16 A/D Converter
16.1 Overview
The SH7052F/SH7053F/SH7054F includes a 10-bit successive-approximation A/D converter,
with software selection of up to 32 analog input channels.
The A/D converter is composed of two independent modules, A/D0 and A/D1. A/D0 comprises
three groups and A/D1 comprises one group.
Module
A/D0
A/D1
Analog Groups
Analog group 0
Analog group 1
Analog group 2
Analog group 3
Channels
AN0 to AN3
AN4 to AN7
AN8 to AN11
AN12 to AN15
16.1.1 Features
The features of the A/D converter are summarized below.
• 10-bit resolution
16 input channels (A/D0: 12 channels, A/D1: 4 channels)
• High-speed conversion
Conversion time: minimum 13.4 µs per channel (when φ = 40 MHz)
• Two conversion modes
 Single mode: A/D conversion on one channel
 Scan mode: cotinuous scan mode, single-cycle scan mode (AN0 to AN3, AN4 to AN7,
AN8 to AN11, AN12 to AN15)
Continuous conversion on 1 to 12 channels (A/D0)
Continuous conversion on 1 to 4 channels (A/D1)
• Sixteen 10-bit A/D data registers
A/D conversion results are transferred for storage into data registers corresponding to the
channels.
• Two sample-and-hold circuits
A sample-and-hold circuit is built into each A/D converter module (A/D0 and A/D1),
simplifying the configuration of external analog input circuitry.
• A/D conversion interrupts and DMA function supported
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