Based on the information provided, it is possible to connect an eMMC memory to SDHC1 and an SD card to SDHC2. The eSDHC in the LX216x is compatible with the JESD84-B51(eMMC/MMC cards) and can be used as an interface for storage. There should be no issue when the eSDHC interface works with a 1.8-volt eMMC as it is a 1.8 V interface on both parts. However, a voltage translator must be used if it interfaces with any type of SD card, such as SDXC, SDHC, and SD cards.
As for the SDHC1_WP (Write Protect) pin, it is typically used to provide a hardware write protect feature. However, the exact behavior might depend on the specific implementation in the LX2160. It's assumed that if the SDHC1_WP pin is used and properly configured, it should prevent write operations to the eMMC memory. However, it's recommended to refer to the LX2160's specific documentation or datasheet for more detailed information on how the SDHC1_WP pin is implemented and its exact behavior.
