Dumps; All Leds Dump - Lexicon MPX 1 - MIDI IMPLEMENTATION DETAILS Midi Implementation Manual

Lexicon

Dumps

The MPX 1 SysEx protocol allows different kinds of data to be moved in and out of the MPX 1 using a single
message class. Other products have unique message classes defined for moving structures and tables
in and out of the system, but the MPX 1 has folded most of these into Parameter Data messages which
librarian programs can use to find dumps then move them in and out of the box without knowing much
of anything about system or the contents of the data. The following sections provide detailed information
about all of the Dump parameters in the MPX 1. Editor and/or controller programs can use this information
to perform off-line editing of these dumps.
All LEDs Dump (Type 0x012F)
This dump contains the current contents of the LED buffer in the MPX 1 that controls the states of the front
panel LEDs. The actual front panel LEDs are represented as individual bits in the dump. The following
table outlines the assignments of the bytes/bits in the dump:
Transmit & Receive
Byte # Description
1 Left Headroom
2 Column 1
3 Right Headroom
4 Column 2
5 7 Segment
Display 1
(left)
Bit Assignments
bit 0 = Left Headroom -24dB LED
bit 1 = Left Headroom -18dB LED
bit 2 = Left Headroom -12dB LED
bit 3 = Left Headroom -6dB LED
bit 4 = Left Headroom 0dB LED
bit 5 = Left Headroom Clip (red) LED
bit 6 = unused
bit 7 = unused
bit 0 = Scan bit 0 (0) (see note below)
bit 1 = Scan bit 1 (0)
bit 2 = Scan bit 2 (0)
bit 3 = Pitch LED
bit 4 = Chorus LED
bit 5 = EQ LED
bit 6 = Program LED
bit 7 = unused
bit 0 = Right Headroom -24dB LED
bit 1 = Right Headroom -18dB LED
bit 2 = Right Headroom -12dB LED
bit 3 = Right Headroom -6dB LED
bit 4 = Right Headroom 0dB LED
bit 5 = Right Headroom Clip (red) LED
bit 6 = unused
bit 7 = unused
bit 0 = Scan bit 0 (1)
bit 1 = Scan bit 1 (0)
bit 2 = Scan bit 2 (0)
bit 3 = Modulation LED
bit 4 = Delay LED
bit 5 = Reverb LED
bit 6 = Edit LED
bit 7 = unused
bit 0 = segment a
bit 1 = segment b
bit 2 = segment c
bit 3 = segment d
bit 4 = segment e
bit 5 = segment f
bit 6 = segment g
bit 7 = decimal point (Digital In)
MPX 1 MIDI Implementation Details
On State
1
1
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
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