Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/JPEG/JPEG_HUFFENC_DC0_4#0x0
JPEG Huffman encoder DC0
Huffman code 8
Huffman length 8
Huffman code 9
Huffman length 9
https://github.com/modm-io/cmsis-svd-stm32