EP560 Datasheet, PDF (1/4 Pages) Actel Corporation – EP560 SD/SDIO/MMC Slave Controller

Eureka Technology
Product Summary
EP560 SD/SDIO/MMC Slave Controller
FEATURES
• Compatible with SD/SDIO specification 2.0 with 1 and 4 bit data transfer
• Option to support MMC 8-bit data width.
• Support SD, SPI and optional MMC bus protocol.
• Support for both standard capacity and high capacity (SDHC) memory cards.
• Supports high speed mode up to maximum transfer rate of 25Mbyte/sec for SD
and 50Mbyte/sec for MMC.
• Simple 32-bit bus master interface to DMA data into user memory space.
• Selectable maximum block size from 512 to 16Kbytes.
• Each IO function includes up to 4096 bytes of data buffer.
• Process most commands automatically without user interference.
• Contains SD memory/SDIO standard slave register set.
• Supports multi-function SD cards, suspend and resume, read wait, block trans-
fers, and SDIO interrupts.
• Password Protection for SD cards.
• Options for AHB, APB, Wishbone, SH4 and Generic user interface.
• Options for interrupt-based user interface.
BLOCK DIAGRAM
CRC
Generation
CMD (SD connector)
command/
response
shifter
DT (SD connector
Data
Shifter
Card Status
State Machine
EP560
Command
State
Machine
Registers
Data
State Machine
Data
Buffer
User
Interface
(one per
function)
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