There are two Multi-Media Card/Secure Digital
(MMCSD) modules inside the device - MMCSD0 and MMCSD1. Each MMCSD module includes
one MMCSD Host Controller, where MMCSD0 is associated with MMC0 and MMCSD1 is
associated with MMC1.
The MMCSD Host Controller supports:
- One controller with 8-bit wide data bus
- One controller with 4-bit wide data bus
- Support of eMMC5.1 Host Specification (JESD84-B51)
- Support of SD Host Controller Standard Specification - SDIO 3.00
- Integrated DMA controller supporting SD Advanced DMA - ADMA2 and ADMA3
- eMMC Electrical Standard 5.1 (JESD84-B51)
- Multi-Media card features:
- Backward compatible
with earlier eMMC standards
- Legacy MMC SDR: 1.8
V, 8/4/1-bit bus width, 0-25 MHz, 25/12.5/3.125 MB/s
- High Speed SDR: 1.8
V, 8/4/1-bit bus width, 0-50 MHz, 50/25/6.25 MB/s
- High Speed DDR: 1.8
V, 8/4-bit bus width, 0-50 MHz, 100/50 MB/s
- HS200 SDR: 1.8 V,
0-200 MHz, 8/4-bit bus width, 200/100 MB/s
- SD card support: SDIO, SDR12, SDR25, SDR50, DDR50
- System bus interface: CBA 4.0 VBUSM initiator
port with 64-bit data width and 64-bit address, little Endian only
- Configuration bus interface: CBA 4.0 VBUSM with
32-bit data width, 32-bit aligned accesses only, linear incrementing
addressing mode, little Endian only
For more information, see Multi-Media
Card/Secure Digital (MMCSD) Interface section in Peripherals chapter
in the device TRM.