P0071 Terasic Technologies Inc, P0071 Datasheet - Page 81

• Manufacturer Part Number: P0071
• Description: TPAD MULTIMEDIADEVELOPMENT KIT
• Manufacturer: Terasic Technologies Inc
• Series: tPAD, Cyclone®IVr

Specifications of P0071

• Main Purpose: Reference Design, Tablet
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: EP4CE115
• Primary Attributes: 8-Inch TFT LCD, LED Backlight
• Secondary Attributes: 5-Megapixel Digital Image Sensor
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note: If the HSMC loopback adapter is mounted, the I2C_SCL will be directly routed back
to I2C_SDA. Because audio chip, TV decoder chip and HSMC share one I2C bus, therefore
audio and video chip won’t function correctly.
Figure 6-2
illustrates the setup for this demonstration.
Figure 6-2 The setup for the TV box demonstration
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USB port is widely used in many multimedia products. The DE2-115 board provides a complete
USB solution for both host and device applications. In this demonstration, we implement a
Paintbrush application by using a USB mouse as the input device.
This demonstration uses the device port of the Philips ISP1362 chip and the Nios II processor to
implement a USB mouse movement detector. We also implemented a video frame buffer with a
VGA controller to perform the real-time image storage and display.
Figure 6-3
shows the block
diagram of the circuit, which allows the user to draw lines on the VGA display screen using the
USB mouse. The VGA Controller block is integrated into the Altera Avalon bus so that it can be
controlled by the Nios II processor.
Once the program runs, the Nios II processor is started as it will detect the existence of the USB
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