Only For Training And Service Purposes - LG GM200 Service Manual

3. TECHNICAL BRIEF
3.6.1 Camera Interface(2M Fixed Focus Camera)
AD6725-ATLAS3HLITE Camera Interface (PPI Block)
AD6900 provides a Parallel Peripheral Interface (PPI) that can connect directly to camera modules. The
PPI is an input-only parallel external port that accommodates up to 10 bits of data, in a variety of RGB
and YUV color formats. In addition, ITU-656 (CCIR656) and ITU-601 (CCIR601) compatible data transfers
are supported.
The PPI feature set includes:
• Eight dedicated data pins and two data pins muxed with GPIOs
• Parallel data transfer rates up to 32.5 MB/s
• Two frame syncs (horizontal and vertical), with programmable polarity
• A bidirectional clock pin, with programmable output clock rate up to 65 MHz
• Synchronization by detection of embedded preamble codes or by using frame
synchronization pins
• ITU standard and counter controlled data transfers
• 8-bit data packing to reduce DMA bandwidth for image data
• Data re-ordering to reduce DMA bandwidth for YUV 4:2:2 data
• A 32 word by 16 bit input FIFO
The PPI offers specific configurations to support still image and video data inputs.
The PPI supports ITU-601 and ITU-656 standards. It also provides Active Video Only and Entire Field
operational modes. In all modes, data packing options optimize DMA transfer bandwidth for YUV 4:2:2
and other data formats.
Pixel array : 1600x1200 (UXGA)
Video mode : UXGA/SXGA/Quad VGA/XGA/SVGA/VGA/and etc
Use external dual LDO :1.8V, 2.8V
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Only for training and service purposes