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7. Programmers' Reference
7.5.9. Upload EDID Content to the Router
Description: EDID hex bytes can be written directly to the user programmable memory locations. The
sequence is the following:
Step 1. Prepare the router to accept EDID bytes to the specified location <loc> with command {WL#<loc>}
Step 2. Router responds that it is ready to accept EDID bytes with (E_L_S)CrLf
Step 3. Send 1 block of EDID (1 block consist of 8 bytes of hex data represented in ASCII format) with
command {WB#<num>•<B1>•<B2>•<B3>•<B4> •<B5>•<B6>•<B7>•<B8>}
Step 4. The router acknowledges with response (EL#<num>)
Step 5. Repeat steps 3 and 4 to send the remaining 31 blocks of EDID (32 altogether)
Step 6. After the last acknowledge, the router indicates that the EDID status changed by sending (E_S_C) CrLf
Format
Command
{WL#<loc>}
Response
(E_L_S)CrLf
Command
{WB#1•<B1>•<B2>•<B3> •<B4>•
<B5>•<B6>•<B7> •<B8>}
Response
(EL#<num>)CrLf
Command
{WB#2•<B9>•<B10>•<B11>•<B12>•
<B13> •<B14>•<B15>•<B16>}
Response
(EL#<num>) CrLf
...
Command
{WB#32•<B249>•<B250> •<B251>•
<B252>•<B253> •<B254>•<B255>•
<B256>}
Response
(EL#<num>) CrLf
Response
(E_S_C) CrLf
Legend: <num> represents the sequential number of every 8 byte part of EDID. <num> is between 1 and 32.
<B1>..<B256> are the bytes of EDID.
Explanation: Full EDID uploaded to memory location 3.
Example
{wl#3}
(E_L_S)
{WB#1 00 FF FF FF FF FF FF 00}
(EL#1)
{WB#2 38 A3 8E 66 01 01 01 01}
(EL#2)
...
{WB#32 36 59 42 0A 20 20 00 96}
(EL#32)
(E_S_C)
MX8x8HDMI-Pro series – User's Manual
7.6. Port Status Commands
7.6.1. Input Port Status
Description: Shows the actual status of the input ports. The response length changes regarding the frame
size.
Format
Command
{:ISD}
Response
(ISD•<INPUT_D> )CrLf
Explanation: The first input board is an HDMI board. Input 1 and 2 have a connected source but no signal.
Inputs 3-5 have DVI signals and inputs 6-8 have HDMI signals. The second input board is a DVI board. Input
11 and 12 have DVI signals. The Test Input port has an HDMI signal.
Legend: <INPUT_D> may contain 9, 17, 33 or 80 hexadecimal numbers. Each number represents the state
for the corresponding input port. The meaning of the responded number depends on the actual board (port)
type. The binary representation of the responded hexadecimal numbers is shown below.
3. bit (MSB)
Source 5V: The connected source sends 5V.
▪
Signal Detect: Video signal is present (TMDS stream can be recognized).
▪
▪
HDMI mode: The incoming signal is HDMI.
7.6.2. Output Port Status
Description: Shows the actual status of the output ports. The response length changes regarding the frame
size. The meaning of the values changes regarding the output board types as the boards have different
functions and capabilities.
Format
Command
{:OSD}
Response
(OSD•<OUTPUT_D> )CrLf
Explanation: There are four DVI sinks connected to ports 2, 9, 11 and 12, nothing else.
Legend: <OUTPUT_D> may contain 9, 17, 33 or 80 hexadecimal numbers. Each number represents the state
for the corresponding output port. The binary representation of the responded hexadecimal numbers is
shown below.
3. bit (MSB)
▪
Receiver Sense: TMDS termination present in the connected device.
Example
{:isd}
(ISD 31000000)
2. bit
1. bit
0. bit (LSB)
0
HDMI mode
signal detect
source 5V
0
HDMI mode
signal detect
source 5V
Example
{:osd}
(OSD 10000000)
2. bit
1. bit
0. bit (LSB)
0
0
0
receiver sense
0
0
0
receiver sense
40
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