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D12320VF25IV Datasheet, PDF (733/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Section 16 A/D Converter (8 Analog Input Channel Version)
Section 16 A/D Converter
(8 Analog Input Channel Version)
16.1 Overview
The chip incorporates a successive-approximations type 10-bit A/D converter that allows up to
eight analog input channels to be selected.
16.1.1 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 (Vref) 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 DMA controller (DMAC)* or data transfer controller (DTC) can be activated for data
transfer by an interrupt
Note: * The DMAC is not supported in the H8S/2321.
⢠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.6.00 Sep. 27, 2007 Page 701 of 1268
REJ09B0220-0600
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