Format Library; Compatibility - Quantum Data 802BT User Manual

Format library

Compatibility

802BT/802R Video Test Generator User Guide
The generator has a built-in library of formats. The same format library is used for all 802
models. The formats are stored in read-only memory (ROM) along with the generator's
operating code.
Some formats are for displays and graphics systems that may not be compatible with a
specific generator model. Attempting to load an incompatible format will give you an error
message. If a format has too high of a pixel rate, a modified version of the format can be
created with reduced horizontal timing parameters that bring the pixel clock rate below the
limit of the generator. The horizontal and vertical rates however are correct. This lets you
light-up a display and verify most of its operation. These modified formats can be created
through the FMTJ command which references a global parameter (JRAT) that determines
the bandwidth of the generator.
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