HD64F7018X20 Просмотр технического описания (PDF) - Renesas Electronics

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HD64F7018X20

Hitachi SuperH™ RISC engine

Renesas Electronics 

Section 1 SH7018 Overview

1.1 SH7018 Features

The SH7018 is a CMOS single-chip microcomputer with a CPU based on Hitachi-original RISC-

type SuperH™* architecture as its core. It also provides peripheral functions essential to system

configuration.

The CPU incorporated into the chip supports the RISC (reduced instruction set computer)

instruction set. Basic instructions execute in one cycle, so instruction execution times are

extremely fast. The chip has an internal 32-bit architecture for efficient data processing. The CPU

is capable of supporting applications employing real-time control. Such applications were not

practical using previous microcomputers due to the extremely fast processing speeds required. It

makes possible the development of systems providing high performance and excellent

functionality at low cost.

The chip incorporates several peripheral functions essential to system configuration, such as

ROM, RAM, timers, serial communication interface (SCI), A/D converter, interrupt controller

(INTC), and I/O ports. It also supports external memory access, which allows for efficient

connections to external memory and LSI devices. These features help to reduce system costs

substantially.

The SH7018 employs on-chip flash memory with F-ZTAT™* (flexible zero turnaround time). In

addition to allowing programming of the chip by writing to it using a program writer for LSI

devices, software can be written to the flash memory and erased as necessary. This allows the

firmware to be overwritten at the user site while the chip is mounted on the circuit board.

Note: * SuperH™ and F-ZTAT™ are trademarks of Hitachi, Ltd.

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