DigiTech Midi Implementation Manual page 99

03h
04h Scan line 3
05h Scan line 2
06h Scan line 7
07h Scan line 0
20h - 7DH Ascii codes
7Eh
7Fh
A0h - FFh Katakana & misc characters
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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GSP21 and GSP21 PRO Midi Implementation
Device type for the GSP21 and the GSP21 PRO
Device Type = 10 (0Ah)