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RX621

Not Recommended for New Designs

32-Bit Microcontroller with 100MHz High-Speed Operation and Built-In Connectivity Functions such as Ethernet and USB Host

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Overview

The RX621 microcontrollers have 100MHz high-speed operation and enhanced communications functions. They have built-in CAN and two circuits of USB 2.0 host controller. A multi-function timer (MTU2, 2 units), 10-bit or 12-bit A/D converter, DMA controller, and other peripheral functions are incorporated on a single chip. Up to 512KB of Flash memory and 96KB of RAM are built in, as well as 32KB of Flash memory for data storage. Packages are available from 85 pins to 176 pins.

RX621 Block Diagram
Pin-Memory Diagram of RX621 standard products
RX621 Block Diagram
Pin-Memory Diagram of RX621 standard products

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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Resources

Support Communities

  1. RX621 - DataFlash is always erased when programming UserFlash

    DataFlash is always erased when I program UserFlash, independent if ID-code in address 0xFFFFFFA0 is set or not. I use Renesas Flash Programmer (RFP) software to program UserFlash, using USB-direct connection. Equal ID-code is set in RFP configuration, as in address 0xFFFFFFA0, starting with 0x45, as described ...

    Feb 3, 2014
  2. IDE to develope RX621's application

    I would like to start working with the 144 pin micro rx621, but before designing the new board, I want to understand which development environment you suggest to me to design the software and debug the application.I am currently working with the micro of the M16C family, M306N4FGTFP with ...

    Sep 24, 2018
  3. USB Host RX621 Flash Drive

    Hi,I'm about to start a new project on a RX621 and am looking for some advice.We want to have a custom bootloader that can read a .mot file from a USB flash drive and flash the internal program memory with that file as well as creating a ...

    Oct 14, 2011
View All Results from Support Communities (42)

FAQs

  1. (RX62N, RX621) What is the maximum transfer volume (byte count) of the DMAC?

    RX62N: Regardless of DMAC transfer mode, the DMA transfer count register (DMCRA) specifies how many words per byte (words/byte) (number of bits depends on SZ) are transferred during one DMA transfer request. With normal transfer mode the DMCRA register can be set to FFFFh and the maximum transfer ...

    Jun 26, 2013
  2. (RX62N, RX621, RX610) I can't enter all-module stop mode.

    To enter all-module stop more, execute a WAIT instruction after setting the related registers or bits as follows. - MSTPCRA.ACSE bit = 1 (all-module clock stop mode is enabled) - SBYCR.SSBY bit = 0 (shifts to sleep mode or all-module clock stop mode after the WAIT instruction is executed ...

    May 27, 2013
  3. (RX62N, RX621) Is the endian of the external bus also set using the mode pin (MDE)?

    The external address space of the external bus is divided into eight areas (CS0 to CS7) and SRAM areas, and the endian mode is set for each using the endian mode bit (EMODE) in the CSi control register (CSiCNT). Note that string manipulation instructions will not work for areas that ...

    Jun 26, 2013
View All Results from FAQs (131)