Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E1A1/MFT0/OCU_OCSD10#0x0
OCU ch.0/1 Control Register D
Enable buffer register function of OCCP(0)
Enable buffer register function of OCCP(1)
Enable buffer register function of OCSE(0)
Enable buffer register function of OCSE(1)
https://github.com/cmsis-svd/cmsis-svd-data