SD Card Driver for RX Family
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.
Topics
We have released ver.2.03 of the SD memory card driver for RX Family. Supported download and import sample projects of FIT modules with the Smart Configurator.
Release Information
Latest Ver.: V2.03
Released: Jan. 21, 2019
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
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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