The Multimedia Card/Secure Digital (MMCSD)
controller supports the following main features:
- 8-bit or 4-bit wide data bus, depending on
instance
- 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)
- Multimedia 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 master 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