Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/JPEG/JPEG_HUFFENC_DC0_2#0x0
JPEG Huffman encoder DC0
Huffman code 4
Huffman length 4
Huffman code 5
Huffman length 5
https://github.com/modm-io/cmsis-svd-stm32