SH7708 datasheet(5/633 Pages) RENESAS

5 / 633 page

Preface

The SH7708, SH7708S, and SH7708R(SH7708 Series) use a RISC (reduced instruction set

computer) type CPU to achieve high-performance computational processing. Also incorporating

the peripheral functions required for system configuration plus power-down features essential for

microcontroller application systems, the SH7708 Series is a new-generation RISC microcontroller

(SuperH™ RISC engine).

The SH7708 Series has a RISC type instruction set, with basic instructions executed in one state,

offering a drastic improvement in instruction execution speed. It also has an on-chip 32-bit

multiplier (producing a 64-bit result) capable of high-speed multiply-and-accumulate operations.

The SH7708 Series’s instructions are upward-compatible with those of the SH-1 and SH-2,

facilitating migration from these series to the SH7708 Series.

SH7708R is completely pin compatible with the SH7708S. On-chip supporting modules that

enable a user system to be configured with a minimum of components include oscillation circuits,

an interrupt controller (INTC), timers, a realtime clock (RTC), and a serial communication

interface (SCI). A user break controller (UBC) is provided as an on-chip module supporting

program development, allowing easy configuration of a simple debugger.

On-chip cache memory improves CPU processing performance, and a built-in memory

management unit (MMU) performs address translation between a 4-gigabyte virtual space and

physical space. An on-chip bus state controller (BSC) provides more efficient external memory

access, and enables direct connection to synchronous DRAM, DRAM, and pseudo-SRAM without

the need for glue logic.

This hardware manual describes the hardware of the SH7708 Series. Details of instructions can be

found in the programming manual.

Note: * SuperH is a trademark of Hitachi, Ltd.

Related Manuals

SH7708Series instructions

SH-3/SH-3E/SH3-DSP Programming Manual

Please consult your Hitachi sales representative for details of development environment system.

SH7708 数据表(PDF) 5 Page - Renesas Technology Corp