MICROTRONIX DX-2200, User Manual

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DX-2200
– SD/HD-SDI Text & Graphics Inserter – User Manual
Page 78 of 103
4.8.1.16 Other Serial Command Codes
Other miscellaneous Serial Command codes are listed in Table 22 below and discussed in the following
sections.
4.8.1.16.1 S
ERIAL
P
ORT
R
ESET
S
ERIAL
C
OMMAND
Sending a Carriage Return or a Linefeed (CR or LF) ASCII code resets or clears the Serial Command buffer
on the DX-2200-TI.
Table 22: Other Serial Command Codes
Command
Code
Mode of Operation
IP Core Revision Code
RV Polls the board for the product ID and IP Core revision
RSn
Report the input video resolution at input n where n = 1 for input 1 and n=2 for input
2. When these commands are received, the DX-2200 outputs a response message
in the format X<LF>+, where X is one of the following values:
X = 0: No video or unsupported mode
X = 1: 720p
X = 2: 1080p
X = 3: 1080i
X = 4: NTSC
X = 5: PAL
When this command reports a video resolution, it only indicates that the input video
is recognized by the DX-2200. It does not mean the input is compatible with the
current operating mode of the product, or that it is available for display. See also
the RIn commands.
RIn
Report input video resolution at input n where n = 1 for input 1 and n=2 for input 2.
When these commands are received, the DX-2200 outputs a response message in
the format X<LF>+, where X is one of the following values:
X = 0: No video or unsupported mode
X = 1: 720p
X = 2: 1080p
X = 3: 1080i
X = 4: NTSC
X = 5: PAL
The RI commands will return X=0 when the input video mode is not supported by
the product, or when the video is not valid for the current configuration. For
example if input 1 is 1080p video, and input 2 is 1080i, the RI2 command returns
return X=0. Even though 1080i is supported by the DX-2200, it cannot be used as
a PiP overlay when input 1 is a progressive video format. In this case, the return
value of 0 indicates the video cannot be displayed.
FS Restart (reset) the DX-2200-TI