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 Actel Corporation 
Short Desc. : SD/SDIO/MMC/CE-ATA Controller
Overview :
iW-Integrated Host Controller interfaces SD / MMC / SDIO / CE-ATA card to any processor with a generic interface. The interface towards the SD card is realized by the SD protocol implemented in the controller. CE-ATA is the interface standard that was derived from MMC with the addition of ATA commands, small form factor and power-conscious designs used in the latest consumer electronic devices, portable media players, cell phones, and other handheld and gaming devices.
Features : - Compliant with the specification versions of SD 2.0, SDIO 2.0, MMC 4.2 and CE-ATA 1.1
- 1-bit / 4-bit / SPI modes of SD, MMC, SDIO and CE-ATA
- 8-bit mode for MMC and CE-ATA
- Generic memory mapped, asynchronous 16-bit CPU interface working at 50MHz
- MMC stream mode, with a maximum stream size of 4096 bytes and minimum 10 bytes
- The maximum block length of 4096 bytes
- One data Transmit FIFO with 16-bit width and 512 depths
- One data Receive FIFO with 16-bit width and 512 depths
- SDIO Interrupts, Suspend / Resume Operation and SDIO Read Wait Operation
- Buffers to store the response received
- Command buffers to store command index and argument
- Timeout monitoring for response and data operation
- Maskable interrupts to processor on controller status
- Supports various clock frequencies required for SD/MMC/SDIO/CE-ATA operations like 200 KHz, 20 MHz, 25 Mhz and 50 MHz
- CRC generation / checking for both command and data transactions
- Card Detection / Removal monitoring for SD, SDIO and MMC
- Using the SD/SDIO/MMC/CE-ATA communication protocol, one CE-ATA or SDIO or SD or MMC card is supported
Categories :
Portability :
Type : Soft
DownStream: Solutions for Post Processing PCB Designs
Verific: SystemVerilog & VHDL Parsers



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