SH7148

Description

The SH7046 Series single-chip RISC (Reduced Instruction Set Computer) microprocessors integrate a Renesas-original RISC CPU core with peripheral functions required for system configuration. The SH7046 series 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 microprocessors, such as real-time control, which demands high speeds. In addition, the SH7046 series includes on-chip peripheral functions necessary for system configuration, such as large-capacity ROM and RAM, timers, a serial communication interface (SCI), an A/D converter, an interrupt controller (INTC), and I/O ports.

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Manuals & Guides (6)

Guide
SuperH RISC Engine Family Product Part Number Guide
PDF 186 KB sh-product-number-guide Apr 04, 2018
Guide
RH850 Development Environment Migration Guide Migration from SuperH Family Compiler to RH850 Family Compiler (Building Guide)
PDF 1.3 MB R20UT3812EJ0100 Rev.1.00 日本語 Jun 15, 2016
Guide
RH850 Development Environment Migration Guide Migration from SuperH Family Compiler to RH850 Family Compiler (Coding / Option Guide)
PDF 352 KB R20UT3232EJ0101 Rev.1.02 日本語 Apr 25, 2016
Manual - Hardware
SH7108 SH7109 Group Hardware Manual
PDF 3.54 MB REJ09B0069-0100 Rev.1.00 日本語简体中文 Sep 18, 2008
Manual - Hardware
SH7046 Group Hardware Manual
RECOMMENDED
PDF 3.28 MB REJ09B0270-0400 Rev.4.00 日本語 Dec 05, 2005

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Application Notes & White Papers (70)

Application Note
CAN Controller Usage: Applications and Frequently Asked Questions Rev.2.03
Log in to Download PDF 1.81 MB R01AN2535ED0203-CAN Rev.2.03 May 15, 2019
AI-generated Summary: The document details the Renesas CAN Controller's usage, including compatibility, evaluation results, and principles of pretended networking. It covers sample software descriptions, CAN driver functionalities such as initialization, configuration, transmission, reception, and diagnostics. The text also explains mapping of lower CAN drivers, application examples, and frequently asked questions addressing CAN conformance, transceiver issues, bit timing, operation modes, power save modes, transmission, reception, message storage, peripheral bus access, and interrupt handling.
Application Note
RX Development Environment Migration Guide Migration from SuperH Family to RX Family (IDE ed.) (High-performance Embedded Workshop to CS+)
PDF 1007 KB REJ06J0102-0200 Rev.2.00 日本語 Apr 20, 2017
AI-generated Summary: The document explains key compiler option differences when migrating source code from the SuperH family to the RX family. It highlights that char types default to signed in SuperH but unsigned in RX, requiring the 'signed_char' option to maintain behavior. It also covers the 'auto_enum' option for automatic enum size selection and the 'dbl_size' option to specify double type size, which defaults to 4 bytes in RX compared to 8 bytes in H8 compilers. Configuration steps in the CS+ IDE are provided for each option.
Application Note
Compiler Package Application Note: The application guide of Call Walker Rev.1.00
PDF 243 KB R20AN0294EJ0100 Rev.1.00 日本語 Feb 18, 2014
AI-generated Summary: The document explains how to register and uninstall Call Walker within the High-performance Embedded Workshop (HEW). It guides users to launch HEW without opening a workspace, access the Tools Administration menu, and register the Call Walker tool by specifying the registration file path. After registration, Call Walker version 2.3 appears in the menu. Upon uninstalling HEW, users must manually delete the remaining Call Walker directory. It also provides Renesas Electronics website and contact information for support. The revision history notes the first edition release date.
Application Note
SH-2, SH-2A Fixed-point Library (Ver. 1.02)
PDF 242 KB R01AN1355EJ0102 Rev.1.02 日本語 Sep 11, 2012
AI-generated Summary: The SH-2 and SH-2A Fixed-point Library (Ver. 1.02) provides fixed-point arithmetic functions through the 'fixmath.h' header and corresponding libraries (sh2fix.lib, sh2afix.lib). It supports fixed-point operations like conversion between float and fixed-point types and trigonometric calculations. Usage instructions include copying files to local directories and specifying libraries in the High-Performance Embedded-Workshop environment. The library warns that results exceeding fixed-point range are not guaranteed. The 'fixmath.h' file defines types and macros for fixed-point operations, with function names indicating bit widths.
Related Files:
Sample Code
Application Note
SH2A and RX Families Signal Processing Library Application Note Rev.1.00
PDF 69 KB REU06J0001-0100 Rev.1.00 日本語 Dec 17, 2010
AI-generated Summary: The document presents performance data of the signal processing library on SH2A-FPU and RX devices, detailing CPU cycles for various DSP functions such as FFT, FIR, and IIR filters across different sample sizes and coefficients. It also provides Renesas Electronics website and support contact information. The revision record notes the first edition release date as December 17, 2010.
Related Files:
Sample Code