User manual

DE2 User Manual
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Internally, the VGA Controller generates data request and odd/even selected signals to the SDRAM
Frame Buffer and filed selection multiplexer(MUX). The YUV422 to YUV444 block converts the
selected YCrCb 4:2:2 (YUV 4:2:2) video data to the YCrCb 4:4:4 (YUV 4:4:4) video data format.
Finally, the YCrCb_to_RGB block converts the YCrCb data into RGB output. The VGA Controller
block generates standard VGA sync signals VGA_HS and VGA_VS to enable the display on a VGA
monitor.
Figure 5.1. Block diagram of the TV box demonstration.
Demonstration Setup, File Locations, and Instructions
• Project directory: DE2_TV
• Bit stream used: DE2_TV.sof or DE2_TV.pof
• Connect a DVD player’s composite video output (yellow plug) to the Video-in RCA jack of
the DE2 board. The DVD player has to be configured to provide
o NTSC output
o 60 Hz refresh rate
o 4:3 aspect ratio
• Non-progressive video
• Connect the VGA output of the DE2 board to a VGA monitor (both LCD and CRT type of
monitors should work)