Trace and Debug registers
SOURCE_PIXEL | source pixels fetched from dma |
LAST_BLOCK | indicate the encoding process for the last mcu of the picture |
LAST_MCU | indicate the encoding process for the last block of the picture |
LAST_DC | indicate the encoding process is at the header of the last block of the picture |
PACKFIFO_READY | the jpeg pack_fifo ready signal, high active |