Lexicon 300 - V3.0 REV 1 Owner's Manual page 52

The MIDI Control page allows you to specify mapping of MIDI Non-registered
parameters, System Exclusive messages or Program Change messages to the
300 registers. The button directly above "AUTO" allows you to set this MIDI
Mode.
MIDI Mode:
P Chg Map:
On the upper line, selecting "AUTO" activates output automation on the 300. The
choices are OFF, SysEx, Non-registered parameters, and Program Change
Only. When the AUTO Mode is set to "OFF", the 300 will not output MIDI data.
Note: In "Program Change Only" automation mode, effect registers R29-50 are
not transmitted as their sequence numbers fall outside of the range of what can
be legally represented by a MIDI data byte (0x00-0x7F). Therefore:
program change # 0x00-0x63 = E: P1-100
program change # 0x64-0x7F = E: R1-28
(For more information on Automation, see MIDI Operation.)
Selecting "CHNL" allows you to set the system and machine channels on which
the 300 can send and receive messages. Possible setttings are: 1-16, OMNI. All
bulk dump and SysEx messages, except Program Change, follow the system
channel, while all generic MIDI and Non-registered parameter messages follow
the machine channel assignment.
Selecting "EDIT" allows you to speciy the MIDI mapping mode. The three
choices available are: OFF, FIX or MAP. For complete information on the MIDI
Table, see Chapter 7: MIDI Operation.
Selecting "DUMP" allows you to dump all registers, the current setup, the MIDI
Map Table, or a MIDI Timecode Event List.
AUTO CHNL
EDIT DUMP
System Operation
Page Two
MIDI Mode and Map Table
3-23