The RadiSys EXM-13 VGA Video Controller Card is an expansion module for embedded systems that delivers standard VGA output and Super VGA resolutions via a 16-bit EPC interface electrically compatible with the ISA bus. Three variants support different video controllers and memory configurations, ranging from 512 KB to 2 MB of display memory, enabling resolution-color depth combinations from 640x480x256 up to 1280x1024x8 at 60 Hz non-interlaced refresh rates. The card includes a standard DB-15 VGA connector for analog monitors and an auxiliary connector for alternative display types, making it suitable for industrial and enterprise embedded applications requiring flexible display connectivity.
Technical Specifications
• Interface: 16-bit EPC modules with electrical similarity to PC ISA bus
• Video Memory: Base model 512 KB; EXM-13A and EXM-13B available with 1 MB or 2 MB
• Data Path Width (EXM-13B): 64-bit access to display memory
• Video Controller Options:
– EXM-13: WD WD90C11
– EXM-13A: NCR 77C22E+
– EXM-13B: Cirrus Logic CL-GD5434 or better
• Operating Temperature: 0° to 60° C (derates 2° C per 1000 ft elevation, maximum 10,000 ft)
• Storage Temperature: -40° to 85° C
• Operating Humidity: 5% to 95% non-condensing
– Key Features
• Implements full VGA video standard with extended 800×600 16-color mode
• Super VGA resolution support: 640x480x256, 800x600x256, 1024x768x16
• EXM-13B supports up to 1280x1024x8 at 60 Hz non-interlaced refresh
• Standard DB-15 analog VGA output for multiscan monitors
• Auxiliary connector (36-pin shielded D-connector on EXM-13B) for flat-panel displays and alternative video interfaces
• Modular EXM form factor for insertion into EXM carriers (up to 8 modules per embedded PC)
– Typical Applications
Industrial control systems, enterprise embedded PCs, and specialized applications requiring multi-resolution display capability with auxiliary video signal routing.
– Compatibility & Integration
Uses standard memory and I/O addresses; incompatible with systems featuring integrated VGA controllers (EPC-2, EPC-3). Only one EXM-6/13 or EXM-13A card per system unless application software supports multiple controllers.
