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Overview

Features of SH7065
The SH7065 is a CMOS single-chip microcomputer featuring an SH2-DSP core—a functionally enhanced version of the SuperH RISC engine using an original Renesas Technology architecture—with the same signal processing capability as a general-purpose digital signal processor (DSP), together with peripheral functions required for system configuration.

The SH2-DSP core offers enhancement of the DSP functions (multiply and multiply-andaccumulate) of the SuperH RISC engine, and provides full DSP type data bus functionality, enabling efficient execution of various kinds of signal processing and image processing. With this CPU, it has become possible to create low-cost, high-performance/high-functionality systems even for applications such as realtime control, which could not previously be handled by microcomputers because of their high-speed processing requirements.

In addition, the SH7065 includes on-chip peripheral functions necessary for system configuration, such as large-capacity ROM and RAM, timers, a serial communication interface (SCI), A/D converter, D/A converter, interrupt controller (INTC), and I/O ports. An external memory access support function allows efficient connection of memory and peripheral LSIs, greatly reducing system cost.

There are two versions of the SH7065, with different kinds of on-chip ROM: an F-ZTAT version with on-chip flash memory, and a mask ROM version. In the F-ZTAT version, programs can be written and rewritten with a Renesas- recommended ROM programmer, or on-board.