Appendices - Roland VR-3 Reference

4. Appendices

■ Decimal and Hexadecimal Conversion Table
(The letter "H" follows numbers in hexadecimal notation.)
MIDI uses hexadecimal notation in 7-bit units to indicate data values, addresses and sizes within an exclusive message.
Hexadecimal and decimal numbers corresponds as follows.
Deci Hexa Deci
0 00H 32
1 01H 33
2 02H 34
3 03H 35
4 04H 36
5 05H 37
6 06H 38
7 07H 39
8 08H 40
9 09H 41
10 0AH 42
11 0BH 43
12 0CH 44
13 0DH 45
14 0EH 46
15 0FH 47
16 10H 48
17 11H 49
18 12H 50
19 13H 51
20 14H 52
21 15H 53
22 16H 54
23 17H 55
24 18H 56
25 19H 57
26 1AH 58
27 1BH 59
28 1CH 60
29 1DH 61
30 1EH 62
31 1FH 63
* Decimal expressions used for MIDI channels, bank select, program change and device ID are 1 greater than the decimal value shown on above table.
* In hexadecimal expressions of 7-bit steps, the value expressed with one byte has 128 steps maximum. For data with greater resolutions, you should
use data made of multiple bytes. For example [aabb] in 2 bytes/7 bits hexadecimal should be [aa x 128 + bb].
■ MIDI Message Examples
<Example 1> 92H 3EH 5F
"9n" is a note on status and "n" is MIDI channel number.
As 2H = 2, 3EH = 62 and 5FH = 95, this is a note on message of MIDI CH = 3, note number 62 (D4) and velocity 95.
<Example 2> CEH 49H
"CnH" is program change status and "n" is MIDI channel number.
As EH = 14 and 49H = 73, this is a program change message of MIDI CH = 15 and program number 74.
Hexa Deci Hexa
20H 64 40H
21H 65 41H
22H 66 42H
23H 67 43H
24H 68 44H
25H 69 45H
26H 70 46H
27H 71 47H
28H 72 48H
29H 73 49H
2AH 74 4AH
2BH 75 4BH
2CH 76 4CH
2DH 77 4DH
2EH 78 4EH
2FH 79 4FH
30H 80 50H
31H 81 51H
32H 82 52H
33H 83 53H
34H 84 54H
35H 85 55H
36H 86 56H
37H 87 57H
38H 88 58H
39H 89 59H
3AH 90 5AH
3BH 91 5BH
3CH 92 5CH
3DH 93 5DH
3EH 94 5EH
3FH 95 5FH
Deci Hexa
96 60H
97 61H
98 62H
99 63H
100 64H
101 65H
102 66H
103 67H
104 68H
105 69H
106 6AH
107 6BH
108 6CH
109 6DH
110 6EH
111 6FH
112 70H
113 71H
114 72H
115 73H
116 74H
117 75H
118 76H
119 77H
120 78H
121 79H
122 7AH
123 7BH
124 7CH
125 7DH
126 7EH
127 7FH
MIDI Implementations
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