Samsung S3C6400X User Manual page 633

FIMV-MFC V1.0
Codec firmware
In addition to the boot code, a package of the firmware for driving the IP is required. Basically, the package for
MPEG-4, H.263P3, H.264 and VC-1 codec is provided. You must write the firmware to a region of external
memory and send information about the base address of the region by writing it to the
run-time, part of firmware is automatically loaded to the internal BIT memory.
Code Memory Base Address
specified in the
CodeBufAddr register
Boot code should be also
loaded to the BIT internal
memory at initialization.
Following is the procedure to download the codec firmware at the video codec initialization step.
Step 1. addr = 512;
sdram_addr = *CodeBufAddr + 1024;
Step 2. code_data = (bit_code[addr] << 16) + bit_code[addr+1]
Step 3. *sdram_addr = code_data;
Step 4. addr = addr + 2;
Step 5. sdram_addr = sdram_addr + 4
Boot Code
Codec Firmware
31
bit_code[n+0]
Figure 21.4 Memory space for the BIT firmware
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
MULTI-FORMAT
1KB
79KB
16 15
bit_code[n+1]
CODEC
VIDEO
register. At
CodeBufAddr
0
21-7