DigiTech Midi Implementation Manual page 10

RESET HARDWARE DEVICE (00100010b 22h)
SYSX_HEADER 22h aa bb EOX
aa The major number of the device to be reset.
bb The minor number of the device to be reset.
The RESET HARDWARE DEVICE procedure causes the DigiTech device to reload a
particular hardware device. The major number is used to identify the
hardware device. The minor number is used to identify a particular element
of a hardware device. If the minor number is 0, then all elements of the
device are reset. As an example, the speaker simulator on the GFX-1
(TwinTube) has a major device number of 2. Valid minor numbers for the
speaker simulator are 0 through 6. If the minor number is 0, then all bands
of the speaker simulator are reset. If the minor number is 1, then the first
band of the speaker simulator is reset. 2 would reset the second band, etc.
RECEIVE MICROCODE (01000000b 40h)
SYSX_HEADER 40h aa bb cc dd ... EOX
aa
bb Repeated groups of 4 bytes.
cc
dd
The RECEIVE MICROCODE procedure is used by DigiTech for product development.
RECEIVE CONFIGURATION (01000001b 41h)