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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