LG GB220 - Page 60

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Functional Overview of CIF
The following list gives an overview over the CIF’s functionality:
• 78 MHz system clock
• 78 MHz sensor clock
• 78 MHz JPEG encoder clock
• 32-bit AHB slave programming interface
• ITU-R BT 601 compliant video interface supporting YC
b
C
r
• ITU-R BT 656 compliant video interface supporting YC
b
C
r
data
•8-bit camera interface
• 12-bit resolution per color component internally
•YC
b
C
r
4:2:2 processing
• Hardware JPEG encoder incl. JFIF1.02 stream generator and programmable quantization and Huffman
tables
• Windowing and frame synchronization
• Continuous resize support
• Frame skip support for video (e.g. MPEG-4) encoding
• Macro block line, frame end, capture error, data loss interrupts and sync. (h_start, v_start) interrupts
• Programmable polarity for synchronization signals
• Luminance/chrominance and chrominance blue/red swapping for YUV input signals
• Maximum input resolution of 3 Mpixels (2048x1536 pixels)
• Main scaler with pixel-accurate up- and down-scaling to any resolution between 3 MP (2048x1536) and
32x16
• pixel in processing mode
• Buffer in system memory organized as ring-buffer
• Buffer overflow protection for raw data and JPEG files
• Asynchronous reset input, software reset for the entire IP and separate software resets for all sub-modules
• Interconnect test support
• Semi planar storage format
• Color processing (contrast, saturation, brightness, hue)
• Power management by software controlled clock disabling of currently not needed sub-modules