JAJSII9E april 2020 – june 2023 DRA821U , DRA821U-Q1
PRODUCTION DATA
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The MMCSD Host Controller provides an interface to eMMC 5.1 (embedded MultiMedia Card), SD 4.10 (Secure Digital), and SDIO 4.0 (Secure Digital IO) devices. The MMCSD Host Controller deals with MMC/SD/SDIO protocol at transmission level, data packing, adding cyclic redundancy checks (CRCs), start/end bit insertion, and checking for syntactical correctness.
For more details about features and additional description information on the device Multi Media Card, see the corresponding sections within Section 6.3, Signal Descriptions and Section 8, Detailed Description.
MMC modes require software configuration of the delay settings, as shown in Table 7-54 and Table 7-64.
Tuning algorithm should be implemented to meet input setup/hold time requirements for SDR50, DDR50 (only on MMCSD1), SDR104, HS200 and HS400 modes.