Overview
Description
The R8C/1A Group is supported only for customers who have already adopted these products. The RL78/G12 Group is recommended for new designs.
These MCUs are fabricated using a high-performance silicon gate CMOS process, embedding the R8C/Tiny Series CPU core, and is packaged in a 20-pin molded-plastic LSSOP, SDIP or a 28-pin plastic molded-HWQFN. It implements sophisticated instructions for a high level of instruction efficiency. With 1Mb of address space, they are capable of executing instructions at high speed. Furthermore, the R8C/19 Group has on-chip data flash ROM (1KB × 2 blocks). The difference between the R8C/18 Group and R8C/19 Group is only the presence or absence of data flash ROM. Their peripheral functions are the same.
Comparison
Applications
Design & Development
Support
Support Communities
Resources
Support Communities
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software SPI for r8c/1a or r8c/25
can anyone pls post the software spi code for r8c/1a or r8c/25 thanks in advance
Nov 30, 2009 -
key input interrupt in R8C/1A controller
key input interrupt how can i set those registers in R8C/1A controller please suggest me clearly and please me sample code for that
Sep 14, 2013 -
QP-nano with Renesas R8C/1A
I have found the QP-nano (http://www.state-machine.com/qp/qpn/) and they say that it uses very few resources. What could you tell about the QP-nano? Should we use it as an RTOS for R8C/1A (16 KB ROM, 1KB ...
Mar 17, 2015
FAQs
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What is the differences between the R8C Family and the M16C/60 Series
The R8C Family doesn't support JMPS and JSRS instructions. These instructions branch to the program set from F0000h to FFFFFh block number, but the R8C Family has no ROM in this area, so you can't use these.
Mar 7, 2012 -
Is there a list of the SFRs for the R8C Family applicable to Technical Update No. TN-M16C-55-0006?
Affected registers include: UART0 bit rate register U0BRG UART0 transmit buffer register U0TB UART1 bit rate register U1BRG UART1 transmit buffer register U1TB For details, please refer to the Hardware Manual. If "When read, the value is undefined" or "When read, the content is undefined" is included in the register ...
Dec 26, 2017 -
(R8C) Are there any hardware precautions for accurate A/D conversion?
In order to perform A/D conversion, it is necessary to fully charge the internal capacitor, but if the impedance of the A/D conversion target is high, the discharge and charge will take time and the conversion value will not be accurate. For correct A/D ...
Jun 19, 2006