Functional Descriptions - Samsung S3C6400X User Manual

JPEG CODEC
BLOCK DIAGRAM
Encoding)
Decoding)
(YUV4:4:4

FUNCTIONAL DESCRIPTIONS

CONTROL CIRCUIT & AHB INTERFACE
This block sets and initializes the operation mode. It consists of in built registers. It is possible to set the
operation modes, quantify the Huffman table number and DRI value into these registers.
DCT/QUANTIZATION
During encoding, JPEG Codec transforms the 8x8 image data to DCT coefficients. Then the quantization
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
22-2
Specifications and information herein are subject to change without notice.
DCT
&
Quantization
Quantization
Table
Control circuit & internal registers & AHB interface
YUV4:2:2
RGB565
JPG file
YUV4:2:2
YUV4:2:0
Gray)
Figure 22-1. JPEG Codec Block Diagram
S3C6400X RISC MICROPROCESSOR
Huffman coder
&
marker process
Huffman
Table
JPEG
Codec
JPEG
Codec
JPG file
(YUV4:2:2
YUV4:2:0)
YUV4:2:2