Datasheet

Table Of Contents
Section 16 A/D Converter
REJ09B0140-0900 Rev. 9.00 Page 601 of 846
Sep 16, 2010
H8S/2215 Group
Section 16 A/D Converter
This LSI includes a successive approximation type 10-bit A/D converter that allows up to six
analog input channels to be selected. The block diagram of the A/D converter is shown in figure
16.1.
16.1 Features
10-bit resolution
Six input channels
Conversion time: 8.1 µs per channel (at 16-MHz operation), 10.7 µs per channel (at 24-MHz
operation)
*
Note: * Available only in H8S/2215R, H8S/2215T and H8S/2215C.
Two operating modes
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 methods conversion start
Software
Timer (TPU or TMR) conversion start trigger
External trigger signal (ADTRG)
Interrupt request
An A/D conversion end interrupt request (ADI) can be generated
Module stop mode can be set
Settable analog conversion voltage range
Analog conversion voltage range settable using the reference voltage pin (Vref) as the
reference voltage
ADCMS34A_000120020100