SD Mode
- 1- and 4-bit data
- Operating mode maximum clock rates
- Standard, default speed mode at 25 MHz
- High-speed mode at 50 MHz
- SDR12 at 25 MHz
- SDR25 at 50 MHz
- SDR50 at 100 MHz
- SDR104 at 200 MHz, up to 800 Mb/s data rate
- DDR50 mode at 50 MHz
- Variable-length data transfers
- Cyclic redundancy check CRC7 for command and CRC16 for data integrity
- Performs read wait control, suspend/resume operation SDIO card
- Card detection (insertion/removal) and write protect input signals
- Designed to work with I/O cards, read-only cards, and read/write cards
- Read wait control, suspend/resume operation
- Control signals for external voltage level shifter
eMMC Mode
The eMMC I/O interface includes data widths up to 8 bits with a clock frequency of up to 200 MHz.
- 1-bit, 4-bit, and 8-bit data
- Operating mode with maximum clock rate:
- Legacy MMC speed mode at 25 MHz
- High-speed SDR and DDR modes at 50 MHz
- HS200 mode at 200 MHz for up to 1600 Mb/s data rate
- Cyclic redundancy check CRC7 for command and CRC16 for data integrity.
Primary Boot Device
The controller can be used as a primary boot device as described in the Boot Modes and Interfaces chapter.