UMX4x4-Pro
User’s Manual
Section
7
.
Programmers
reference
Page 107 / 129
<CON>:
Connection sense:
0 = There is no attached sink device,
1 = Sink device attached (termination is present)
<MODE>:
Output signal mode
D = DVI,
H = HDMI 24bit,
1 = HDMI 30bit deepcolor
2 = HDMI 36bit deepcolor
<SIG>:
Signal present
0 = No valid signal is routed to this port,
1 = Valid video signal is present.
<HDCP>:
HDCP encryption status
0 = HDCP encryption is inactive,
1 = HDCP encryption is active.
<HPD>:
Hotplug detection
0 = Hotplug detect signal is low,
1 = Hotplug detect signal is high.
O block:
Actual output settings
<MODE>:
Same as in G block.
<CSPAC>:
Reserved for legacy reasons. Response is always ‘A’.
<CRANG>: Reserved for
legacy reasons. Response is always ‘A’.
<SUBS>:
Reserved for legacy reasons. Response is always ‘A’.
<HDCP>:
Same as in G block.
M block:
Attached device (monitor) information
<HSUP>:
0 = Sink device does not support HDMI
1 = Sink device supports HDMI
<AUTH>:
0 = HDCP authentication failed
1 = HDCP authentication is successful
<REP>:
0 = Attached device is not an HDCP repeater
1 = Attached device is an HDCP repeater
<YUV4>:
0 = Attached device does not support YUV 4:4:4
1 = Attached device supports YUV 4:4:4
<YUV2>:
0 = Attached device does not support YUV 4:2:2
1 = Attached device supports YUV 4:2:2
<AUD>:
0 = Attached device has no audio capabilities
1 = Attached device has audio capabilities
<PCM>:
This field represents a byte in hexadecimal format.
The binary bits show support for different audio bit rates.
bit 0 - Sink device supports 32kHz PCM audio
bit 1 - Sink device supports 44kHz PCM audio
bit 2 - Sink device supports 48kHz PCM audio
bit 3 - Sink device supports 88kHz PCM audio
bit 4 - Sink device supports 96kHz PCM audio
bit 5 - Sink device supports 176kHz PCM audio
bit 6 - Sink device supports 192kHz PCM audio
bit 7 - Reserved (Always 0 in this version of protocol)
<DC>:
This field is a number is decimal format.
The binary bits show support for different color modes.
bit 2 - HDMI deep color 30bits/pixel mode is supported
bit 1 - HDMI deep color 36bits/pixel mode is supported
bit 0 - YUV444 color space is supported in DC modes
Info:
The M block can be missing if there is no attached device on output.
