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PCM 90 MIDI Implementation Details
Lexicon
0x20 Meter response
This dump is only transmitted by the PCM 90 when the automatic verbose mode is selected. It is
transmitted whenever the meter values change. For data reduction purposes, there is no LED change.
Byte # Byte Value Description Notes
1 F0 SysEx ID
2 06 Lexicon ID
3 08 PCM 90 ID
4 0iii iiii Device ID
5 0x20 Meter message
6 000i iiii Left Meter bitmask Same as the LED message description.
7 000i iiii Right Meter bitmask
8 0xF7 End of SysEx
0x21 Patch Display Response
PCM 90 to host only. This dump returns the current display for a specified patch at a specified input value.
It is useful for an editing program that doesn’t know the display specifics for a parameter.
Byte # Byte Value Description Notes
1 F0 SysEx ID
2 06 Lexicon ID
3 08 PCM 90 ID
4 0iii iiii Device ID
5 0x21 Patch display data
6 0n Patch (0-9)
7 0n Pivot point (0-127) This should be an assigned point.
8-22 0iii iiii 15-char display string See Overview for information on ASCII characters.
23 0xF7 End of SysEx
0x22 Matrix Mapping Response
PCM 90 to host only. This dump is a response to a request for information. The request holds
DestinationList ID and Destination List Index. This message returns the parameter that is mapped to that
location in the edit matrix. These are required when translating to and from the stored effect format.
Byte # Byte Value Description Notes
1 F0 SysEx ID
2 06 Lexicon ID
3 08 PCM 90 ID
4 0iii iiii Device ID
5 0x22 matrix mapping data
6 0iii iiii Dest List ID These two fields are used in the Single Effect packet.
7 0iii iiii Dest List Index
8 0iii iiii See Parameter Dump.
9 0iii iiii Parameter offset Dependent on parameter type and algorithm.
10 0xF7 End of SysEx
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