HD64F2638F20J Datasheet, PDF (731/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 17 A/D Converter
Section 17 A/D Converter
Note: The H8S/2635 Group is not equipped with a DTC.
17.1 Overview
The chip incorporates a successive approximation type 10-bit A/D converter that allows up to
twelve analog input channels to be selected.
17.1.1 Features
A/D converter features are listed below.
• 10-bit resolution
• Twelve input channels
• Settable analog conversion voltage range
⎯ Conversion of analog voltages with the reference voltage pin (Vref) as the analog reference
voltage
• High-speed conversion
⎯ Minimum conversion time: 13.3 µs per channel (at 20-MHz operation)
• Choice of single mode or scan mode
⎯ 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 16-bit data register for each channel
• Sample and hold function
• Three kinds of conversion start
⎯ Choice of software or timer conversion start trigger (TPU), or ADTRG pin
• A/D conversion end interrupt generation
⎯ A/D conversion end interrupt (ADI) request can be generated at the end of A/D conversion
• Module stop mode can be set
⎯ As the initial setting, A/D converter operation is halted. Register access is enabled by
exiting module stop mode.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 681 of 1458