ADV8003 Hardware Manual
Rev. B, August 2013
144
3.
VIDEO SIGNAL PROCESSING
The dual scaler variants of the ADV8003 are the following:
•
ADV8003KBCZ-8/7
•
ADV8003KBCZ-8C/7C
The single scaler variants of the ADV8003 are the following:
•
ADV8003KBCZ-8B/7B
•
ADV8003KBCZ-7T
References to the SVSP apply only to the dual scaler variants.
3.1.
INTRODUCTION
The primary function of the ADV8003 is high performance video processing, such as motion adaptive de-interlacing, flexible scaling and
frame rate conversion, as well as additional video processing such as noise reduction, CUE correction, and aspect ratio/panorama scaling.
This section details the registers used to control the Video Signal Processing (VSP) hardware.
The three constituent sections of the ADV8003 video processor are the PVSP, SVSP, and the PtoI converter. These hardware blocks are
completely independent of each other and can be placed in various configurations within the ADV8003.
Access to an external DDR2 memory can be required for the PVSP and SVSP to operate correctly. The PVSP needs access to external
DDR2 memory in every mode except game mode. While the SVSP uses external DDR2 memory for the majority of operations, in the case
of down converting from 1080p to 720p (with the same frame rate), no external memory is required and all conversions can take place in
internal line memories. The PtoI converter does not need access to external DDR2 memory.
3.2.
PRIMARY VSP
3.2.1.
Introduction to PVSP
Figure 51: ADV8003 PVSP
shows the structure of the PVSP which comprises three sections: the Video Input Module (VIM), the Video Output Module
(VOM), and a controller referred to as the Field Frame Scheduler (FFS).
The VIM is used to capture input video data which it then writes to external DDR2 memory. The VIM is also capable of cropping input
video data and performing horizontal downscaling. Before the VIM writes video data to external memory, it first packs the video into the
appropriate data formats. In game mode, VIM will send packed 128-bit words to VOM directly instead of writing them into external
memory.
The VOM is used to read data from external memory, format this data into 12-bit pixels, perform various functions on this data (scaling,
Summary of Contents for ADV8003
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