VGA/LCD Display Controller

Overview

Beyond VGA Display Controller core provides VGA capabilities for embedded systems. It supports both CRT and LCD displays with user programmable resolutions and video timings, thus providing compatibility with almost all available LCD and CRT displays.

The core supports a number of color modes, including 32bpp, 24bpp, 16bpp, 8bpp grayscale, and 8bpp-pseudo color. The video memory is located outside the primary core, thus providing the most flexible memory solution possible. It can be located on-chip or off-chip, shared with the system’s main memory (VGA on demand) or be dedicated to the VGA system. Image data is fetched automatically via the WISHBONE Master interface, making this an ideal “program-and-forget” video solution. More demanding video applications, like streaming video or video games, can benefit from the video-bank-switching function. Flicker and cluttered images are reduced by automatically switching between video-memory pages and/or color lookup tables on each vertical retrace.

The horizontal, vertical, and composite synchronization polarization levels, as well as the blanking polarization level are programmable by software.

Key Features

Resolutions of up to 2048x2048 @ 60Hz in ASIC. Higher resolutions are possible, depending on silicon process
Resolutions of up to 1024x1024 @ 60Hz in FPGA. Higher resolutions are possible, depending on FPGA speed grade
32 bits per pixel (bpp), 24bpp and 16bpp color modes
8bpp grayscale and 8bpp pseudo-color modes
Horizontal and verical image scaling by integer factors
CRT and LCD display support
Separate VSYNC/HSYNC and composite CSYNC synchronization signals
Composite BLANK signal
User programmable video timing
User programmable video resolutions
User programmable video control signals polariy
Supports video bank switching during vertical retrace
AHB or 32bit WISHBONE RevB.3 compliant Slave and Master interfaces
Operation from a wide range of input clock frequencies
Static, synchronous design
Fully synthesizable

Applications

Embedded GUI
Embedded multimedia
Multi-function printer display
Portable media player
Video camcorder
Digital camera
GPS and navigation instruments

Deliverables

Soft core RTL in Verilog
Test bench in Verilog
Programming interface document
Engineering support
An evaluation platform is available for purchase separately

Technical Specifications

Availability

Now

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