Hitachi H8S/2338 Series Hardware Manual page 4

Preface
The H8S/2338 Series, H8S/2328 Series, and H8S/2318 Series are series of high-performance
microcontrollers with a 32-bit H8S/2000 CPU core, and a set of on-chip supporting functions
required for system configuration.
The H8S/2000 CPU can execute basic instructions in one state, and is provided with sixteen 16-bit
general registers with a 32-bit internal configuration, and a concise and optimized instruction set.
The CPU can handle a 16-Mbyte linear address space (architecturally 4 Gbytes). Programs based
on the high-level language C can also be run efficiently.
The address space is divided into eight areas. The data bus width and access states can be selected
for each of these areas, and various kinds of memory can be connected fast and easily.
Single-power-supply flash memory (F-ZTAT™) and mask ROM versions are available, providing
a quick and flexible response to conditions from ramp-up through full-scale volume production,
even for applications with frequently changing specifications.
On-chip supporting functions include a 16-bit timer pulse unit (TPU), programmable pulse
generator (PPG), 8-bit timer, watchdog timer (WDT), serial communication interface (SCI), A/D
converter, D/A converter, and I/O ports.
In addition, an on-chip DMA controller (DMAC) and data transfer controller (DTC) are provided,
enabling high-speed data transfer without CPU intervention.
Use of the H8S/2338 Series, H8S/2328 Series, and H8S/2318 Series enables easy implementation
of compact, high-performance systems capable of processing large volumes of data.
This manual describes the hardware of the H8S/2338 Series, H8S/2328 Series, and H8S/2318
Series, covering features, specifications, registers and operation. It should be used in conjunction
with the H8S/2338 Series Reference Manual, H8S/2328 Series Reference Manual, and H8S/2318
Series Reference Manual which contain information relating to the H8S/2338 Series and
H8S/2328 Series hardware—including specifications and register descriptions—required for
system design.
Refer to the H8S/2600 Series, H8S/2000 Series Programming Manual for a detailed description of
the instruction set and programming-related information.