Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Renesas Electronics/R7FA6M3AH/CTSU/CTSUMCH1#0x0
CTSUMCH1=CTSUMCH1
CTSU Measurement Channel Register 1
CTSU Measurement Channel 1 Note1: If the value of CTSUMCH1 was set to b’11111, the measurement is stopped.
0 (CTSUMCH1): The value of CTSUMCH1 indicate to channel to be measured.
https://github.com/cmsis-svd/cmsis-svd-data