Quantum Data 881 User Manual page 284

272 Chapter 9 Testing HDMI Sink Devices
Function/Field Function
PELD This is the pixel depth within the 882. It defines the number of colors
available to the 882 for rendering simultaneously on an image. The
valid values for the PELD pulldown select box are 8 and 32. A setting
of 8 means there is a maximum of 256 on-screen luminance levels per
ramp. A setting of 32 means there is a maximum of 1024 on screen
luminance levels but only 512 per ramp.
Gamut (Range) Sets the number gamut of the output signal. This corresponds to the
DVQM parameter. The values are Max (DVQM=0), MaxTV(DVQM=1)
and NomTV (DVQM=2) this is the default for TV formats.
Clr (Color) Space This pulldown select box specifies the color space. When you change
this field the setting is applied to the 882. This field corresponds to the
DVST and DVSM commands. Valid values are: RGB (DVSM=0),
YCbCr4:2:2 (DVSM=2), YCbCr4:4:4 (DVSM=4).
NBPC This pulldown select box specifies the color depth per component on
the top ramp. By setting this value to 12, the 882 will put out 12
bit/component deep color video on the top ramp. Valid values are 8, 10
and 12.
Number of bits This pulldown select box specifies the color depth per component on
the bottom ramp. By setting this value to 12, the 882 will put out 12
bit/component deep color video on the bottom ramp. Valid values are
4-12.
Grayscale mode When checked this will set all three slide bars for each color
component on each Color 1 and Color 2 to the same value. When
unchecked you are free to set each color component to any value.
GET The GET activation button updates all the fields on the image control
in the event changes are made directly on the front panel or through
the command line. Associated with the GET activation button is a
string of information that tells you what format is currently active.
Note: The 882 LCD will not show the updated values changed using the Image Control
Tool in real time. You have to press the + key on the 882 to update the LCD.
For example given the following settings:
• Format = 720p60 (HRES = 1280)
• NBPC = 12 for 12-bit/component color
• Number of Bits = 8 for 8-bit/component color
• PELD = 32 (maximum 882 color)
• Clr Space (DVST) = RGB
• Grayscale mode = Checked (enabled)
• Gamut (DVQM) = NomTV (256 to 3760 [with RGB and NPBC =12])