Section 1 Overview
1.1 Features
The H8/532 is an original Hitachi CMOS microcomputer unit (MCU) comprising a high-
performance CPU core plus a full range of supporting functions—an entire system integrated onto
a single chip.
The CPU features a highly orthogonal instruction set that permits addressing modes and data sizes
to be specified independently in each instruction. An internal 16-bit architecture and 16-bit access
to on-chip memory enhance the CPU’s data-processing capability and provide the speed needed
for realtime control applications.
The on-chip supporting functions include RAM, ROM, timers, a serial communication interface
(SCI), A/D conversion, and I/O ports. An on-chip data transfer controller (DTC) can transfer data
in either direction between memory and I/O independently of the CPU.
For the on-chip ROM, a choice is offered between masked ROM and programmable ROM
(PROM). The PROM version can be programmed by the user with a general-purpose PROM
writer.
Table 1-1 lists the main features of the H8/532 chip.
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