MultiMediaCard / eMMC Driver for RX Family
Overview
MultiMediaCard / eMMC Driver for RX Family
This device driver controls MultiMediaCards (MMCs) and Embedded MultiMediaCards (eMMCs) by using the dedicated interfaces which are embedded in various MCUs.
This driver allows the updating and reading of data by calling user API functions. It is also an FIT module which supports our Firmware Integration Technology (FIT), so sample code for it is easy to integrate with user applications in combination with other FIT modules. Also, operation with DMAC or DTC transfer can be implemented by combining the driver with the DMAC FIT module or DTC FIT module. The driver is robust against mechanical vibration, so is suitable for industrial use.
Topics
The MultiMediaCard / eMMC Driver for RX Family for RX Family V.1.04 has been released. It is now downloadable from our web site.
Release Information
Latest Ver.: V1.04
Released: Feb. 1, 2019
Features
| Item | Function |
|---|---|
| Conforming standard | JEDEC Standard JESD84-A441 JEDEC Standard JESD84-B50 |
| Bus interface | MMC mode (1-bit/4-bit/8-bit) is supported |
| Number of MMC devices controlled | One device/channel |
| Speed mode | The Backward-compatible and High-speed mode are supported. |
| Microcontroller internal data transfer method | Either software, DMAC, or DTC transfer can be selected |
| MCU-dependent portion | Separate interface functions are provided for different target MCUs. |
| Memory capacity | Media up to 2 GB is supported with byte access mode, and media over 2 GB is supported with sector access mode. |
| Memory control objects | Only a user area is supported Boot area control is not supported |
MultiMediaCard is a trademark of MultiMediaCard Association (MMCA)
Application Configuration
Target Device & Product Lineup
| Product Name | MultiMediaCard / eMMC Driver for RX Family |
|---|---|
| Target Devices | MultiMediaCard, eMMC |
| Target MCUs | RX64M, RX65N, RX651, RX71M |
| Evaluation Board | SD card slot or HMI Expansion Board 1 is required. You can evaluate the driver on any of the following kits. |
1. Please purchase HMI Expansion Board.
The FAT32 formatter is capable of formatting eMMC devices with capacities up to 128 GB to have FAT32 file systems.
Obtaining the Product
Related Software
Please contact a Renesas sales representative or agent if using in combination with FAT file system.
| M3S-TFAT-Tiny for the RX Family | Support is only for FAT12, FAT16, and FAT32. |
|---|
Development Tools Support
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|---|---|
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| e-learning | Information for studying and learning about microcontrollers and microprocessors. |
| FAQ | Frequently asked questions and useful hints for development. |
| Forum | A forum and community site to share technical information, questions and opinions with others who use Renesas MCU's. |
| Tool News | Tool release information and other important information. |
| Operating Environment | Information on system requirements and operating environment for the latest version of tools. |
| Info on Discontinued Products | A list of Renesas software and tools that have been discontinued and are no longer being offered for new projects. |