DigiTech Midi Implementation Manual page 3

GENERAL FORMAT
D7 - D0 Hex Value Definition
11110000b F0h System exclusive status byte
00000000b 00h
00000000b 00h DOD/DigiTech manufacturer's ID number
00010000b 10h
0000nnnnb 0Nh N = Channel # - 1,
i.e. 0000 00h is Channel 1.
0001 01h is Channel 2
.
1111 0Fh is Channel 16
The internal representation of the channel to which the receiving unit is
listening. It is used to communicate with different units of the same device
type connected to a common MIDI line. If the receiving device is set to omni
then this byte is ignored.
0tttttttb TTh DigiTech device type. Specifies the particular DigiTech
product with which communication is being held. (See page 4 for current
DigiTech device types.)
0pppppppb PPh Procedure number. Each procedure's name and general format are
on page 4. Consult the Midi Device Manual to determine which procedures are
supported by your device and the exact data format for those procedures.
0dddddddb DDh
0dddddddb DDh
0dddddddb DDh
. .