DAC TEST register:
Video Encoder Module
dss-087
VENC_OUTPUT_CONTROL[6] COMPOSITE_SOURCE for DAC1
VENC_OUTPUT_CONTROL[4]
TEST_MODE
VENC_OUTPUT_TEST[9:0]
COMPOSITE_TEST (DAC1)
RGB[23:0]
CVBS[9:0]
(DAC1)
DAC[9:0]
RGB[9:0]
0
1
0
1
Public Version
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Display Subsystem Functional Description
CAUTION
•
The TV detect feature is not available in bypass mode.
•
In bypass mode, an external amplifier is needed on the cvideo1_vfb and
cvideo2_vfb pins.
7.4.7.11 Video DAC Stage Test Mode
The DAC stage can be tested for debug using either 10-bit external data or 10-bit internal register values
directly connected to the DACs. See
for video DAC test in composite video mode, and see
for video DAC test in separate video mode.
Figure 7-114. DAC Test Mode in Composite Video Mode
1703
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
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