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S3C2410A MMC/SD/SDIO HOST CONTROLLER
19-1
19 MMC/SD/SDIO HOST CONTROLLER
OVERVIEW
The S3C2410A SD Host controller can support MMC/SD card and SDIO devices.
FEATURES
— SD Memory Card Spec. (ver. 1.0) / MMC Spec. (2.11) compatible
— SDIO Card Spec (ver. 1.0) compatible
— 16 words (64 bytes) FIFO (depth 16) for data Tx/Rx
— 40-bit Command Register (SDICARG[31:0]+SDICCON[7:0])
— 136-bit Response Register (SDIRSPn[127:0]+ SDICSTA[7:0])
— 8-bit Prescaler logic (Freq. = System Clock / (2(P + 1)))
— CRC7 & CRC16 Generator
— Polling, Interrupt and DMA Data Transfer Mode (Byte or Word transfer)
— 1-bit / 4-bit (wide bus) Mode & Block / Stream Mode Switch support
— Supports up to 25 MHz in data transfer mode for SD/SDIO
— Supports up to 20 MHz in data transfer mode for MMC