h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 749

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

This LSI includes a successive-approximation-type 10-bit A/D converter that allows up to six
analog input channels and up to eight digital input channels to be selected.
A/D conversion for digital input is effective as a comparator in multiple input testing.
22.1
A block diagram of the A/D converter is shown in figure 22.1.
ADCMS33A_000020020300
Analog conversion voltage range can be specified using the reference power supply voltage
pin (AVref) as an analog reference voltage.
10-bit resolution
Conversion time: Max. 5.36 µs per channel (at 25-MHz operation)
Two kinds of 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 kinds of conversion start
Software, 8-bit timer (TMR) conversion start trigger, or external trigger signal.
Interrupt request
A/D conversion end interrupt (ADI) request can be generated
Module stop mode can be set
nput channels: six analog input channels and eight digital input channels
Features
Section 22 A/D Converter
Rev. 3.00 Jan 25, 2006 page 697 of 872
Section 22 A/D Converter
REJ09B0286-0300