Datasheet

537
Section 15 High Speed A/D Converter (Excluding A Mask)
15.1 Overview
The high speed A/D converter has 10-bit resolution, and can select from a maximum of eight
channels of analog inputs.
15.1.1 Features
The high speed A/D converter has the following features:
• 10-bit resolution
• Eight input channels
• Analog conversion voltage range setting is selectable
 Using the reference voltage pin (AVref) as an analog standard voltage (Vref), conversion of
analog input from 0 to Vref (only with SH7043).
• High-speed conversion
 Minimum conversion time: 2.9 µs per channel (for 28-MHz operation)
 1.4 µs per channel during continuous conversion
• Multiple conversion modes
 Select mode/group mode
 Single mode/scan mode
 Buffered operation possible
 2 channel simultaneous sampling possible
• Three types of conversion start
 Software, timer conversion start trigger (MTU), or ADTRG pin can be selected.
• Eight data registers
 Conversion results stored in 16-bit data registers corresponding to each channel.
• Sample and hold function
• A/D conversion end interrupt generation
 An A/D conversion end interrupt (ADI) request can be generated on completion of A/D
conversions