Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h7rs/STM32H7R/SDMMC1/SDMMC_RESP4R#0x0
SDMMC response 4 register
Card status according table below See Table 444.
https://github.com/modm-io/cmsis-svd-stm32