Intrinsix Corp. offers two standard versions of its VGA compatible HDL synthesizable core. The INT416-SM(standard modes only) is a reduced gate count, basic VGA, version of the core. The INT416-SXGA(super XGA) is an enhance version of the core but has a higher gate count. Both designs contain the identical VGA core that is fully hardware register compatible to the IBM VGA standard. The -SXGA is compatible to the VESA standards for the enhanced operating modes: 800x600, 1024x768, and 1280x1024, at refresh rates up to 85Hz. Table 1 provides a complete description of the supported display modes. Also included in both versions of the core is a IBM PS/2 compatible RAMDAC (i.e. the digital portion of the RAMDAC. The host interface and color LUTs. The video DAC module is not included).
Both versions of the core area are available in netlist or behavioral Verilog source code format. The design is modular with all inter-module signals and RTL fully documented. Modifications can be made to any area of the design in order to ease the integration task. Detailed core specifications including interface timing diagrams are available. Core are supported with a Verilog based test bench.