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Overview
Description
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.
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. - Learn More
Release Information
Latest Ver.: V2.03
Released: Jan. 21, 2019
Target Devices
Documentation
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| Type | Title | Date |
| Application Note | PDF 1.46 MB 日本語 | |
| Tool News - Release | PDF 177 KB 日本語 | |
| Application Note | PDF 1.10 MB 日本語 | |
| Application Note | PDF 1.01 MB 日本語 | |
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Additional Details
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.
Target Device & Product Lineup
SD Memory Card Driver
| 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. |
*1 Obtain a commercial Pmod SD card conversion board.
SDIO Driver
| Product Name | SDIO Driver *2 | |
|---|---|---|
| Target Device | SDIO Interface Wireless LAN (eWBC from d-broad, Inc.) *3 |
SDIO Interface Wireless LAN (TypeZX from Murata Manufacturing Co., Ltd.) *3 |
| Target MCUs | RX231, RX64M, RX65N/RX651, RX71M | |
| Part Number | RTM0RX0000DSDD2JB0RP | RTM0RX0000DSDD3JB0RP |
| Status | Available | Available |
| Evaluation Board | ||
*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.
*3 For an environment where wireless LAN operation can be verified in combination with the valuation board, contact your local Renesas Electronics marketing office or distributor.
Obtaining the Product
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.