DigiTech Midi Implementation Manual page 57

The full character set of the DigiTech display may be found in the Hitachi
Liquid Crystal Display Modules (1987) data book page 37.
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DSP256 XL Midi Implementation
Device type for the DSP256 XL
Device Type = 11 (0Bh)
DigiTech Procedures recognized by the DSP256 XL
Request Configuration (00h)
Request One Program (01h)
Receive Microcode (40h)
Receive Configuration (41h)
Receive One Program (42h)
Continuous Controller Calculations
Parameter Value = (CC_Value * 2 * (PARAM_MAX + 1))/256
CC_VALUE The value of the continuous controller. (0-127)
PARAM_MAX The maximum value of the parameter the continuous controller is
changing.
Data format for the DSP256 XL Receive Configuration procedure