7. Programmer’s Reference
MX-FR Series Modular Matrix Frames – User's Manual
128
Applied CPU2 firmware: v3.5.7b8 | LDC software: v2.5.17b2
Setting the Parameters
Command and Response
ȩ
{:HDMI#
<out>
@
<S/C/A>
O=
<a>
;
<b>
;
<c>
;
<d>
;
<e>
;}
Ȩ
(HDMI#
<out>
@
<S/C/A>
O=
<GEN_INFO>
;
<VIDEO>
;
<ADV_INFO>
;
<OUT_SET>
;
<SINK>
;)CrLf
Example
ȩ
{:HDMI#1@SO=?}
Ȩ
(HDMI#1@SO=G11101;V720x576p51,313,00;I0011AA;OAAAAA;M110111077;)CrLf
The signal type is set to DVI, the other parameters have not been changed. Use the 'x' character to keep the
actual value of a parameter. The response contains the new settings in the
<OUT_SET>
block; see the details
in the Parameters section.
Parameters
<
gen_info
>
block
The signal info block contains general information about the signal. The first character of this block is G.
Format:
G
<a><b><c><d><e>
Identifier
Parameter Description
Parameter Values
<
a
>
Sink is connected
0
= no attached sink device
1
= sink device is present
<
b
>
Signal type
0
= DVI signal is transmitted
1
= HDMI signal is transmitted (no deep color)
2
= HDMI signal is transmitted (deep color, 30 bit)
3
= HDMI signal is transmitted (deep color, 36 bit)
<
c
>
Signal validity
0
= No valid signal is routed to the port
1
= Valid video signal is present
<
d
>
HDCP state
0
= HDCP encryption is disabled
1
= HDCP encryption is active
<
e
>
Hotplug detection
0
= Hotplug detect signal is low
1
= Hotplug detect signal is high
Example:
G11101
#hdcp
Sink device is attached to the port and HDMI signal is routed to the port. HDCP is disabled and hotplug is
detected.
<
video
>
block
INFO:
This block is present only if a valid video signal is present on the selected port.
The resolution, refresh rate, scan mode, and color space information are described in this block The first
character of this block is V.
Format:
V
<Resolution>
,
<Hsync>
,
<Color_space>
Identifier
Parameter Description
Parameter Values
<
Resolution
> <
Width
>x<
Height
><
Scan
><
Vsync
>
<
Width
> = active video width (pixels)
<
Height
> = active video height (pixels)
<
Scan
> =
p:
progressive,
i:
interlaced scan mode
<
Vsync
> value (Hz)
<
Hsync
>
Horizontal sync
<
Hsync
> value (kHz)
<
Color_space
> Color space information
00
= RGB444
10
= YUV422
20
= YUV444
Example:
V1920x1080p60,675,00
1080p60 signal is detected with progressive scan at 60 Hz refresh rate; vertical sync value is 675 kHz and
the signal is in RGB 4:4:4 color space.
<
adv_info
>
block
For advanced users this block provides information that could be useful during debugging process. The first
character of this block is I.
Format:
I
<a><b><c><d><e><f>
Identifier
Parameter Description
Parameter Values
<
a
>
VSYNC polarity
0
= VSYNC polarity is negative (leading edge falls)
1
= VSYNC polarity is positive (leading edge rises)
<
b
>
HSYNC polarity
0
= HSYNC polarity is negative (leading edge falls)
1
= HSYNC polarity is positive (leading edge rises)
<
c
>
TMDS clock line signal
presence
0
= There is no change on the TMDS clock line
1
= Signal is present on the TMDS clock line
<
d
>
TMDS clock line stability
0
= The clock signal is unstable on the TMDS clock line
1
= The clock signal is stable on the TMDS clock line
<
e
>
Active Format Aspect
Ratio based on AVI
InfoFrame
0
= Field is not present (e.g. DVI signal)
2
= 16:9 (top)
3
= 14:9 (top)
4
= greater than 16:9 (center)
5
= Same as picture aspect ratio
9
= 4:3 (center)
A
= 16:9 (center)
B
= 14:9 (center)
D
= 4:3 (with shoot and protect 14:9 center)
E
= 16:9 (with shoot and protect 14:9 center)
F
= 16:9 (with shoot and protect 4:3 center)
<
f
>
Pixel repetition factor
based on AVI InfoFrame
0
= No repetition (i.e. pixel sent once)
1
= Pixel sent 2 times (i.e. repeated once)
3
= Pixel sent 4 times
Example:
I111190.
Positive HSYNC and VSYNC, stable pixel clock, 4:3 aspect ratio and no pixel repetition.
