Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Holtek/HT32F275x/SPI0/SPI0_SR#0x0
SPI0_SR
TXBE
TXE
RXBNE
WC
RO
MF
SA
TO
BUSY
Reserved.
https://github.com/cmsis-svd/cmsis-svd-data