TView Pro AV User's Manual Rev 2.01
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The Value Byte provides “absolute information” if the parameter in question is a Toggle or Multiple Choice Item. If the
parameter in question is a range item, the Value Byte provides “relative information” incrementing or decrementing the
existing value of that parameter by on count.
In addition to the above commands, two additional commands are provided for control information. Writing Value Byte
= 01 to register 22 will cause an Auto Reset operation to occur. Writing Value Byte = 01 to register 23 will cause the
existing parameter set to be written in to NOVRAM. The TView Pro AV will power up with these parameters until the
NOVRAM is changed by writing another set of parameters.
The following table indicates the Register Functions, the Register Number, Parameter Type and action of the legal values
of the Value Byte.
Register Name Number Type Value Byte Actions
Horizontal Position 1 Range =01 increment, =00 decrement
Horizontal Size 2 Range =01 increment, =00 decrement
Vertical Position 3 Range =01 increment, =00 decrement
Vertical Size 4 Range =01 increment, =00 decrement
Zoom 5 Toggle =01 Zoom On, =00 Zoom Off
Compress 6 Toggle =01 Comp On, =00 Comp Off
UnderScan 7 Toggle =01 UnderScan, =00 OverScan
Terminate 8 Toggle =01 Terminated, =00 Unterminated
Fine Genlock H Position 9 Range =01 increment, =00 decrement
Coarse Genlock H Position 10 Range =01 increment, =00 decrement
Genlock Subcarrier Phase 11 Range =01 increment, =00 decrement
Genlock Subcarrier Phase Reverse 12 Toggle =01 180 degrees, =00 0 degrees
Genlock Termination 13 Toggle =01 Terminated, =00 Unterminated
NTSC/PAL 14 Toggle =01 NTSC, =00 PAL
Sharpness (Flicker Filter) 15 Toggle =01 Flicker Filter, =00 Sharp
LumaFilter 16 Toggle =01 Filter On, =00 Filter Off
Brighness Boost 17 Toggle =01 Boost On, =00 Boost Off
Saturation Boost 18 Toggle =01 Boost On, =00 Boost Off
Freeze Frame 19 Toggle =01 Freeze, =00 Live Input
YUV/RGB Selection 18 Toggle =01 RGB, =00 YUV
Sync Selection 19 Multiple =01 VGA, =02 MAC, =03 GRN
Reset 22 =01 Reset
NOVRAM Save Parameters 23 =01 Save
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