Samsung S5PC110 Manual page 981

S5PC110_UM
7
SD/MMC CONTROLLER
This chapter describes the Secure Digital (SD/ SDIO), MultiMediaCard (MMC), CE-ATA host controller and related
registers supported by S5PC110 RISC microprocessor.
7.1 OVERVIEW OF SD/ MMC CONTROLLER
The SD/ MMC host controller is a combo host for Secure Digital card and MultiMediaCard. This host controller is
based on SD Association's (SDA) Host Standard Specification.
The SD/ MMC host controller is a interface between system and SD/MMC. The performance of this host is very
powerful, as clock rate is 48-MHz and access 8-bit data pin simultaneously.
7.2 KEY FEATURES OF SD/ MMC CONTROLLER
The High-Speed MMC controller supports:
•
SD Standard Host Specification Version 2.0 standard
•
SD Memory Card Specification Version 2.0 / High Speed MMC Specification Version 4.3 standard
•
SDIO Card Specification Version 1.0 standard
•
512 bytes FIFO for data Tx/ Rx
•
CPU Interface and DMA data transfer mode
•
1-bit / 4-bit / 8-bit mode switch
•
8-bit 2 channel, or 4-bit 4 channel
•
Auto CMD12
•
Suspend/ Resume
•
Read Wait operation
•
Card Interrupt
•
CE-ATA mode
7 SD/MMC CONTROLLER
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