RM0082
LS_JPEG codec
Doc ID 018672 Rev 1
567/844
25.4.16 JPGChuffmin
memory
Together with the HuffBase table and the HuffSymb table, this is one of the three Huffman
tables required by the Codec Core when it acts as a decoder.
The HuffMin table can be up to 4 x 100 bit words. its memory map is shown in
When decoding with header processing, this table is automatically programmed by the
codec core, while in the case of ECS only decoding, the HuffMin table must be programmed
before starting the codec core.
25.4.17 JPGC
huffbase
memory
Together with the HuffMin table and the HuffSymb table, this is one of the three Huffman
tables required by the Codec Core when it acts as a decoder.
The HuffBase table can be up to 64 x 9 bit words. its memory map is shown in
When decoding with header processing, this table is automatically programmed by the
codec core, while in the case of ECS only decoding, the HuffBase table must be
programmed before starting the codec core.
25.4.18 JPGChuffsymb
memory
Together with the HuffMin table and the HuffBase table, this is one of the three Huffman
tables required by the codec core when it acts as a decoder.
The HuffSymb table can be up to 336 x 8 bit words. its memory map is shown in
Table 485.
JPGCHuffMin memory map
Address
Value
0
MIN AC 0 value
1
MIN DC 0 value
2
MIN AC 1 value
3
MIN DC 1 value
Table 486.
JPGC huffbase memory map
First address
Last address
Table
0
15
BASE AC 0 value
16
31
BASE DC 0 value
32
47
BASE AC 1 value
48
63
BASE DC 1 value
Table 487.
JPGC huffsymb memory map
First address
Last address
Table
0
161
SYMB AC 0 value