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R4P2125 Просмотр технического описания (PDF) - Renesas Electronics

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R4P2125 Datasheet PDF : 700 Pages
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Preface
The H8S/2125 Group is a series of microcomputers (MCUs) made up of the H8S/2000 CPU with
Renesas Technology’s original architecture as its core, and the peripheral functions required to
configure a system.
The H8S/2000 CPU has an internal 32-bit configuration, sixteen 16-bit general registers, and a
simple and optimized instruction set for high-speed operation. The H8S/2000 CPU can handle a
16-Mbyte linear address space. The instruction set of the H8S/2000 CPU maintains upward
compatibility at the object level with the H8/300 and H8/300H CPUs. This allows the transition
from the H8/300, H8/300L, or H8/300H to the H8S/2000 CPU.
This LSI is equipped with ROM, RAM, two kinds of PWM timers (PWM and PWMX), a 16-bit
free running timer (FRT), a 16-bit cycle measurement timer (TCM), a 8-bit timer (TMR),
watchdog timer (WDT), serial communication interface (SCI), I2C bus interface (IIC), an A/D
converter, and I/O ports as on-chip peripheral modules required for system configuration. In
addition, a data transfer controller (DTC) is included as bus master.
A flash memory (F-ZTATTM*) or PROM (OTP Version) is available for this LSI’s 512-Kbyte
ROM. The CPU and ROM are connected to a 16-bit bus, enabling byte data and word data to be
accessed in a single state. This improves the instruction fetch and process speeds.
Note: * F-ZTATTM is a trademark of Renesas Technology. Corp.
Target Users: This manual was written for users who use the H8S/2125 in the design of
application systems. Target users are expected to understand the fundamentals of
electrical circuits, logic circuits, and microcomputers.
Objective:
This manual was written to explain the hardware functions and electrical
characteristics of the H8S/2125 Group to the target users.
Refer to the H8S/2600 Series, H8S/2000 Series Software Manual for a detailed
description of the instruction set.
Notes on reading this manual:
In order to understand the overall functions of the chip
Read this manual in the order of the table of contents. This manual can be roughly categorized
into the descriptions on the CPU, system control functions, peripheral functions and electrical
characteristics.
Rev. 1.00 Sep. 21, 2006 Page vi of xxxviii

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