Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32H7x5_CM7/AXI/AXI_INI4_READ_QOS#0x0
AXI interconnect - INI x read QoS register
Read channel QoS setting
https://github.com/cmsis-svd/cmsis-svd-data