Address |
BITS |
Description |
Default |
R/W |
0x0014 |
(31:12) |
TPG cycle interval(19:0) – defines test pattern display interval
for the test pattern generator. LSB = 1 ms(1) |
0x7D0 |
R/W |
11 |
not used |
|
|
10 |
not used |
|
|
9 |
not used |
|
|
8 |
CEN – 1 = test pattern cycling. 0 = cycling disabled(2) |
‘1’ |
R/W |
(7:0) |
Test pattern select(7:0)(3) |
0x00 |
R/W |
(1) 1 ms is the step size for this value. A value of 0x000 results in unpredictable
behavior.
(2) When pattern cycling is enabled,
the test pattern generator cycles through writing patterns 0x00 through 0x0E
into the test pattern buffer at the rate given by the TPG cycle interval. When
pattern cycling is disabled, the test pattern generator writes the selected
pattern into the test pattern buffer.
(3) Test pattern select chooses test
pattern to display when test pattern cycling is disabled:
- 0x00 – full ON
pattern
- 0x01 – full OFF
pattern
- 0x02 – ANSI
checkerboard
- 0x03 – single pixel grid
line pattern with single pixel outside border
- 0x04 – west to east
single pixel diagonal lines
- 0x05 – east to west
single pixel diagonal lines
- 0x06 – horizontal
lines
- 0x07 – vertical
lines
- 0x08 – load4
checkerboard
- 0x09 – checkerboard
- 0x0A – inverted
checkerboard
- 0x0B – 1x1 horizontal
lines
- 0x0C – 1x1 vertical
lines
- 0x0D – random noise
pattern
- 0x0E – block boundary
checkerboard
- 0x0F – user defined
pattern (loaded through USB/GPIF)
- 0xFF-0x10 – not
used