Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/JPEG/JPEG_HUFFENC_AC1_53#0x0
JPEG Huffman encoder AC1
Huffman code 106
Huffman length 106
Huffman code 107
Huffman length 107
https://github.com/modm-io/cmsis-svd-stm32