Alesis quadraverb Service Manual page 25

02 - MIDI Data Dump
<program#> = 0..99 selects individual programs
= 100 selects the edit buffer
= > 100 selects all 100 programs
<data> is in a packed format in order to optimize data transfer. Eight MIDI bytes are used to transmit
each block of 7 QuadraVerb data bytes. If the 7 data bytes are looked at as one 56-bit word, the format
for transmission is eight 7-bit words beginning with the most significant bit of the first byte, as follows:
SEVEN QUADRAVERB BYTES:
0: A7 A6 A5 A4 A3 A2 A1 A0
1: B7 B6 B5 B4 B3 B2 B1 B0
2: C7 C6 C5 C4 C3 C2 C1 C0
3: D7 D6 D5 D4 D3 D2 D1 D0
4: E7 E6 E5 E4 E3 E2 E1 E0
5: F7 F6 F5 F4 F3 F2 F1 F0
6: G7 G6 G5 G4 G3 G2 G1 G0
TRANSMITTED AS:
0: 0 A7 A6 A5 A4 A3 A2 A1
1: 0 A0 B7 B6 B5 B4 B3 B2
2: 0 B1 B0 C7 C6 C5 C4 C3
3: 0 C2 C1 C0 D7 D6 D5 D4
4: 0 D3 D2 D1 D0 E7 E6 E5
5: 0 E4 E3 E2 E1 E0 F7 F6
6: 0 F5 F4 F3 F2 F1 F0 G7
7: 0 G6 G5 G4 G3 G2 G1 G0
There are 147 bytes sent for a single data dump, which corresponds to 128 bytes of program data. There
are 14,629 bytes sent for a 100 program dump, which corresponds to 12,800 bytes of program data. The
location of each parameter within a program is shown in the next section.
When the QuadraVerb receives a data dump message, the display reads:
Should the Quadraverb's MIDI input buffer overflow, the display will read:
Alesis QuadraVerb Service Manual------
F0 00 00 0E 02 02 <program#> <data> F7
LOADING
MIDI DATA ...
19 08/13/04