SPRUJG2 December 2024 AM62D-Q1
The EVM board provides a microSD card Socket of manufacturer part number MEM2052-00-195-00-A connected to the MMC1 port of AM62D SoC. This supports this UHS1 operation is supported, including I/O operations at both 1.8V and 3.3V. The microSD card interface is set to operate in SD mode by default. For high-speed cards, the ROM Code of the SOC attempts to find the fastest speed that the card and controller can support and then have a transition to 1.8V through a VSEL_SD_SoC signal from the SoC
The microSD card connector power is provided using a load switch of manufacturer part number TPS22918DBVR, which is controlled by ANDing the output of RESETSTATz, PORz_OUT and a GPIO from I/O Expander.
An ESD protection device of part number TPD6E001RSE is provided for data, clock, and command signals. TPD6E001RSE is a line termination device with integrated TVS diodes providing system-level IEC 61000-4-2 ESD protection, ±8kV contact discharge and ±15kV air-gap discharge.