D12320VF25V Datasheet, PDF (565/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 14 A/D Converter (8 Analog Input Channel Version)
Section 14 A/D Converter
(8 Analog Input Channel Version)
14.1 Overview
The chip incorporates a successive-approximations type 10-bit A/D converter that allows up to
eight analog input channels to be selected.
14.1.1 Features
A/D converter features are listed below
• 10-bit resolution
• Eight input channels
• Settable analog conversion voltage range
⎯ Conversion of analog voltages with the reference voltage pin (V_ref) as the analog reference
voltage
• High-speed conversion
⎯ Minimum conversion time: 6.7 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 8-bit timer), 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
⎯ The data transfer controller (DTC) can be activated for data transfer by an interrupt
• 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
Rev.7.00 Feb. 14, 2007 page 531 of 1108
REJ09B0089-0700