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
