Overview

This device driver controls SD cards with the use of the on-chip SD host interface (SDHI) of an MCU. Using this driver along with a lower-layer SDHI FIT module allows you to control SD memory and SDIO (Secure Digital Input/Output).

You can update or read data by simply calling user API functions. This device driver is a Firmware Integration Technology (FIT) module which supports FIT. In combination with other FIT modules, you can easily include various sample code in user applications. DMAC or DTC transfer can be included by combining the SD card driver with the DMAC FIT module or DTC FIT module.

About FIT

Search all FIT modules

Topics

We have released Ver.2.02 of the SD memory card driver for RX Family. It is now downloadable from our web site.

Features

Bus Interface
Support is only for 4-bit SD mode.
Numbers controllable
1 card/channel
Speed mode
Supports default speed mode.
Transfer of data in the MCU
You can choose transfer by software, DMA, or the DTC.
MCU-dependent part
Divided out in the SDHI FIT module.
Memory Capacity
Supports standard-capacity SD memory cards (SDSC) and high-capacity and extended-capacity SD memory cards (SDHC and SDXC).
Target for memory control
Support is only for user areas.
We do not support the control of protected areas.

The SD memory card driver complies with the SD Simplified Specification. A company planning to manufacture its own memory cards or host products, or to use the official SD standards in the R&D phase, is required to have a license for this from the SD Association.

Application Configuration

Target Device & Product Lineup

Product Name SD Memory Card Driver
Target Device SD Memory Card
Target MCUs RX231, RX64M, RX65N/RX651, RX71M
Evaluation Board An SD card slot is required. You can evaluate the driver on any of the following kits.
Renesas Starter Kit for RX231(B Mask)+ PMOD SD Card Conversion Board *1
Renesas Starter Kit+ for RX64M
Renesas Starter Kit+ for RX65N
Renesas Starter Kit+ for RX65N-2MB
Renesas Starter Kit+ for RX71M

*1 Obtain a commercial Pmod SD card conversion board or a wireless LAN extension board package for Renesas Starter Kits. The wireless LAN extension board package for Renesas Starter Kits includes a Pmod SD card conversion board.

 

Product Name SDIO Driver *2
Target Device SDIO Interface Wireless LAN
(eWBC from d-broad, Inc.)
SDIO Interface Wireless LAN
(TypeZX from Murata Manufacturing Co., Ltd.)
Target MCUs RX231, RX64M, RX65N/RX651, RX71M
Part Number RTM0RX0000DSDD2JB0RP RTM0RX0000DSDD3JB0RP
Status Available Available
Evaluation Board For evaluation, use the Wireless LAN expansion board package for Renesas Starter Kit with any of the following kits.
Renesas Starter Kit for RX231 (B Mask)
Renesas Starter Kit+ for RX64M
Renesas Starter Kit+ for RX65N
Renesas Starter Kit+ for RX65N-2MB
Renesas Starter Kit+ for RX71M
For evaluation, use the wireless LAN extension board package with any of the following kits.
Renesas Starter Kit for RX231 (B Mask)
Renesas Starter Kit+ for RX64M
Renesas Starter Kit+ for RX65N
Renesas Starter Kit+ for RX65N-2MB
Renesas Starter Kit+ for RX71M

*2 To place an order for the SDIO Driver, contact your local Renesas Electronics marketing office or distributor and let them know the above orderable part number.

Obtaining the Product

Download

Related Software

The SD card driver can be used with any of the following FAT file system software libraries.

M3S-TFAT-Tiny for the RX Family Support is only for FAT12, FAT16, and FAT32.

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