Datasheet

Section 1 Overview
REJ09B0465-0300 Rev. 3.00 Page 3 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Classification
Module/
Function Description
Voltage
detection
Low-voltage
detection
circuit (LVD)
Voltage drop detected
DMA Data transfer
controller
(DTC)
• Transfer via any number of channels possible
• Three transfer modes
A/D converter A/D
converter
(ADC)
• 10-bit resolution × eight to sixteen input channels
• Sample and hold function included
• Conversion time: 2 μs per channel
• Two operating modes: single mode and scan mode
• Three ways to start A/D conversion: software, timer trigger,
and external pin trigger.
D/A converter D/A
converter
(DAC)
• 8-bit resolution × two input channels
Timers Timer RA 8 bits × one channel (with 8-bit prescaler)
Timer RB 8 bits × one channel (with 8-bit prescaler)
Timer RC 16 bits × one channel (only available with H8S/20103 and
H8S/20115 Groups)
Timer RD 16 bits × two channels (× two units in H8S/20203, H8S/20223,
H8S/20215, and H8S/20235 Groups)
Timer RE 8 bits × one channel with real-time clock function
Timer RG 16 bits × one channel with phase-counting mode
Watchdog
timer (WDT)
8 bit × one channel
Serial interfaces
• Three channels (either for asynchronous or clock-synchronous
communication)
• Full-duplex communication capability
• Any desired bit rate selectable
Serial
communi-
cation
interface 3
(SCI3)
IrDA (only available with channel 2)
Synchro-
nous serial
communi-
cation unit
(SSU)
• One channel (IIC2 and selection format)
• Clock-synchronous communication with chip-select function