Microsemi

IP Module - SD 1.1 Controller

The iWave SD v1.1 Controller is an interface between any 8-bit processor and the SD/MMC/SDIO card. The interface towards the SD card is realized by the SD protocol implemented in the controller. The main blocks in the controller are CPU interface, command path state machine, command transmitter/receiver, data path state machine, data transmit/receive and clock logic.

To obtain more information or to obtain this core, please contact iWave Systems Technologies.

Key Features:

• 1-bit/4-bit modes of SD, MMC and SDIO supported
• 8-bit Generic CPU interface
• Both DMA and Interrupt mode is supported for Data transfer
• Command buffers to store command index and argument
• Any byte size transfers supported. Sector size can be set from 1 byte to 2048 bytes
• CRC generation/checking supported for both command and data transactions
• Compliant with SDIO specification version 1.1
• Compliant with SD specification version 1.1
• Compliant with MMC specification version 2.0
• Using the SD/SDIO/MMC communication protocol, one SDIO or SD or MMC card is supported
• Card Detection/Removal support
• Write protect using mechanical switch
• Interrupts for errors

Resources

• Datasheet