Overview

The SH7144 Group and SH7145 Group single-chip RISC (Reduced Instruction Set Computer)

microcomputers integrate a Renesas Technology original RISC CPU core with peripheral functions required for system configuration.

The SH7144 Group and SH7145 Group CPU has a RISC-type instruction set. Most instructions

can be executed in one state (one system clock cycle), which greatly improves instruction

execution speed. In addition, the 32-bit internal-bus architecture enhances data processing power.

With this CPU, it has become possible to assemble low cost, high performance/high-functioning

systems, even for applications that were previously impossible with microcomputers, such as realtime control, which demands high speeds.

特性 Features

? Central processing unit with an internal 32-bit RISC (Reduced Instruction Set Computer)architecture

? Instruction length: 16-bit fixed length for improved code efficiency

? Load-store architecture (basic operations are executed between registers)

? Sixteen 32-bit general registers

? Five-stage pipeline

? On-chip multiplier: multiplication operations (32 bits× 32 bits →64 bits) executed in two to four cycles

? C language-oriented 62 basic instructions

? Various peripheral functions

? Direct memory access controller (DMAC)

? Data transfer controller (DTC)

? Multifunction timer/pulse unit (MTU)

? Compare match timer (CMT)

? Watchdog timer (WDT)

? Asynchronous or clocked synchronous serial communication interface (SCI)

? I2C bus interface (IIC)*1

? 10-bit A/D converter

? Clock pulse generator

? User break controller (UBC)

? User debugging interface (H-UDI)*2

? Advanced user debugger (AUD)*2

Notes: 1. Option

2. Supported only for flash memory version.