Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/DTS/DTS_TS1SDIFDATAR#0x0
SAMPLE_TYPE=B_0x0
DTS TS1 SDIF data register
Sample data.
TS sample type
0 (B_0x0): Indicates valid data
1 (B_0x1): Indicates either analog access, signature select or fault debug mode
Sample fault
https://github.com/modm-io/cmsis-svd-stm32