SH7706 datasheet(49/749 Pages) RENESAS

49 / 749 page

Section 1 Overview

Rev. 5.00 May 29, 2006 page 1 of 698

REJ09B0146-0500

Section 1 Overview

The SH7706 is a RISC microprocessor that integrates a Renesas Technology-original RISC-type

SuperH™ architecture SH-3 CPU as its core that has peripheral functions required for system

configuration. The CPU of this LSI has upper compatibility with the SH-1 and SH-2 at object code

level. This LSI incorporates a memory management unit (MMU) that has a 128-entry 4-way set

associative translation lookaside buffer (TLB).

The LSI incorporates the following peripheral functions: an on-chip direct memory access

controller (DMAC) that enables high-speed data transfer and a bus state controller (BSC) that

enables direct connection to different types of memory. The LSI also incorporates a serial

communication interface, an A/D converter, a D/A converter, a timer, and a realtime clock that

enable system configuration at low cost.

A built-in power management function enables dynamic control of power consumption. Thus, this

LSI is optimum for portable electronic devices such as PDAs that require both high performance

and low power.

The SH7706 incorporates a user debugging interface (H-UDI) and an advanced user debugger

(AUD) to support emulator functions such as E10A. This LSI also incorporates a user break

controller (UBC) for self debugging.

Note:

The SuperH is a trademark of Renesas Technology, Corp.

1.1

Feature

• Original Renesas SuperH architecture

• Object code level compatible with SH-1, SH-2 and SH-3

• 32-bit RISC-type instruction set

 Instruction length: 16-bit fixed length

 Improved code efficiency

 Load-store architecture

 Delayed branch instructions

 Instruction set oriented for C language

• Five-stage pipeline

• Instruction execution time: one instruction/cycle for basic instructions

• General-register: Sixteen 32-bit general registers

• Control-register: Eight 32-bit control registers

• System-register: Four 32-bit system registers

SH7706 Datasheet(PDF) 49 Page - Renesas Technology Corp