DLPU078A july 2019 – may 2023 DLP230NP , DLPC3436
Table 3-59 describes the write parameters.
Parameter Bytes | Description |
---|---|
Byte 1 | TPG pattern select (LSByte) |
Byte 2 | TPG pattern options (MSByte) |
MSB | Byte 1 and 2 | LSB | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
Bit | Type | Description |
---|---|---|
7 | W |
Test Pattern Boarder 0h = Disabled (default) 1h = Enabled |
6-4 | W |
Color 0h = Black 1h = Blue 2h = Red 3h = Magenta 4h = Green 5h = Cyan 6h = Yellow 7h = White |
3-0 | W |
Pattern Select 0h = Solid Field 1h = Grids 2h = Horizontal Ramp 4h = Checkerboard 5h = Horizontal Lines 6h = Vertical Lines 7h = Diagonal Lines 8h = Actuator Calibration Pattern 9h = 3D Test Pattern Ah = Color Bars Bh = Frame & Cross Ch - Fh = Reserved |
Byte 2: Varies depending on configuration selected. It is ignored for Solid Field, Grids, Horizontal, Vertical and Diagonal lines, 3D test patterns and Color Bars.
For Horizontal and Vertical Ramps, Byte 2 represents the pixel level intensity at the brightest part of the ramp ranging from 0-255.
For Checkerboards, Byte 2 specifies the size of each checker in 4 pixel resolution so a value of 10 would generate 40 pixel checkers.
For Actuator Calibration test patterns, Byte 2 specifies the sub-frames to be displayed:
For Frame & Cross, Byte 2 is divided into two nibbles. Each nibble is a pixel position from the upper left corner of the image with a resolution of (Pixel Count / 16). So 720p has 80 pixel increments horizontally and 45 pixel increments vertically. 1080p has 120 pixel increments horizontally and 68 pixel increments vertically.