Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Alif Semiconductor/AE302F80F5582LE_CM55_HE_View/OSPI0/OSPI_RXUICR#0x0
OSPI Receive FIFO Underflow Interrupt Clear Register
Clear Receive FIFO Underflow Interrupt. This bit reflects the status of the interrupt. A read from this bit clears the Receive FIFO Underflow interrupt; writing has no effect.
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https://github.com/cmsis-svd/cmsis-svd-data