I have selected the LS1012A processor for my new project where i have the requirement for 128GB SD card, so chosen the SDXC card with UHS-I speed, while looking the LS1012A datasheet, it shows only the SDHC details. So please can you confirm did this LS1012A support for SDXC type too or not.
Yes, LS1012A supports UHS-I modes. As you know, the SDXC is accessed using block mode. However, SDR104 mode only support up to 125 Mhz.