P0304 Terasic Technologies Inc, P0304 Datasheet - Page 73

• Manufacturer Part Number: P0304
• Description: DE2-70 CALL FOR ACADEMIC PRICING
• Manufacturer: Terasic Technologies Inc
• Type: FPGAr

Specifications of P0304

• Contents: DE2-70 Board, Power Supply, Cables, Plastic cover and software
• For Use With/related Products: Cyclone II 2C70
• For Use With: P0033 - BOARD ADAPTER HSMC TO GPIOP0006 - BOARD ADAPTER THDB-SUMP0001 - MODULE DIGITAL CAMERA 5MP (D5M)P0307 - KIT DEV 4.3" LCD TOUCH PANEL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DE2-70

described in the section 6.2. The Composite_to_VGA block takes the video signals from the TV
decoders as input and generate VGA-interfaced signals as output. The circuit in the FPGA is
equipped with two Composite_to_VGA blocks converting the video signals from the TV decoder 1
and TV decoder 2 respectively. To display two video signals in PIP mode on the LCD/CRT
monitor, the output VGA data rate of the Composite_to_VGA block for the sub window must be two
times as fast as the rate of the Composite_to_VGA block for the main window. In addition, the
output timing of the VGA interface signal from the Composite_to_VGA block is controlled by the
pip_position_controller block that determines the stating poison of the sub window. Finally, both of
the two VGA interfaced signals will be multiplexed and sent to the LCD/CRT monitor via the
VGA_multiplexer block.
Demonstration Setup, File Locations, and Instructions
Video in 2
Video in 1
Video in 1
Video in 2
or
or
 Project directory: DE2_70_TV_PIP
 Bit stream used: DE2_70_TV_PIP.sof or DE2_70_TV_PIP.pof
 Connect composite video output (yellow plug) of DVD player 1 and DVD player2 to the
 Connect the VGA output of the DE2-70 board to a VGA monitor (both LCD and CRT type
 Connect the one audio output of the DVD player to the line-in port of the DE2-70 board and
Video-in 1 and Video-in 2 RCA jack (J8 and J9) of the DE2-70 board respectively. Both
DVD players must be configured to provide
of monitors should work)
connect a speaker to the line-out port. If the audio output jacks from the DVD player are of
(Main window)
(Sub window)
TV decoder
TV decoder
o 60 Hz refresh rate
o 4:3 aspect ratio
o Non-progressive video
Figure 6.3. Block diagram of the TV PIP demonstration.
TD data
TD_clock
TD data
TD_clock
(27Mhz)
TD_clock_
PLL
Composite_to_
(Main window)
Composite_to_
(Sub window)
VGA
VGA
54Mhz
VGA data
Control
70
signal
data(Main)
VGA
PiP_position_
controller
VGA data(Sub)
VGA multiplexer
VGA data
DE2-70 User Manual
VGA DAC