Quantum Data 780C, User Manual

Page: 214 / 240

780C Multi-Interface Interoperability Tester
– User Guide
Page 213
September 29, 2014 Revision A1
Table 12-1: List of Commands (alphabetical)
– For Testing HDMI Sink Devices
Command Description Syntax Parameters Command Example
DACG
Specifies which audio
channels are activated
(gated on) for LPCM
audio.
DACG <mask>
Where mask is an 8 bit value.
Each bit corresponds to a
channel with the first bit (bit 0)
associated with channel 1, bit 1
for channel 2 and so on to bit 7
corresponding to channel 8.
The bit position values are:
Bit 0 – Ch 1 = 1
Bit 1 – Ch 2 = 2
Bit 2 – Ch 3 = 4
Bit 3 – Ch 4 = 8
Bit 4 – Ch 5 = 16
Bit 5 – Ch 6 = 32
Bit 6 – Ch 7 = 64
Bit 7 – Ch 8 = 128
You can enable multiple
channels.
To enable channel 1 only:
DACG 1
ALLU
To disable all channels:
DACG 0
ALLU
To enable all channels:
DACG 255
ALLU
To enable channel 8 only:
DACG 128
ALLU
To enable channels 1-6:
DACG 127
ALLU
DVSM
Sets or queries the
digital video sampling
mode. Applies only for
HDMI.
DVSM
< sampling >
DVSM?
Where sampling is one of:
0 – RGB (4:4:4)
2 – YCbCr (4:2:2)
4 - YCbCr (4:4:4)
To set the HDMI sampling mode
to RGB (4:4:4):
DVST 10
DVSM 0
ALLU
DVST Sets or queries the
digital video type.
Applies only for HDMI. DVST< type >
DVST?
Where type is one of:
10 – RGB
14 – YCbCr
To set the HDMI sampling mode
to YCbCr (4:4:4):
DVST 14
DVSM 4
ALLU
DVQM Sets or queries the
digital video quantizing
range. Applies only for
HDMI.
DVQM < mode >
DVQM?
Where range is one of:
0 – 0-255 (8 bit)
1 – 1-254 (8 bit)
2 – 16-235 (8 bit RGB
16-240 (8 bit YCbCr)
To set the HDMI quantizing
range to 0-255: to RGB:
DVQM 0
ALLU
EDID? Shows the EDID (in
hex) of the sink device
connected to the 780C
Tx port.
EDID? Not applicable To read a sink device’s EDID:
EDID?
01FFFFFFF01…
FMTL Loads a format. FMTL < format >
Where format is one of the
formats listed in Table 7-2 and
Table 7-3
See example below for FMTU
FMTU Activates a format that
has been loaded and
queries for the
currently active format.
FMTU
FMTU? Not applicable To load and invoke a format load
command:
FMTL 1080i60
FMTU