BOSS br-1200cd - Инструкция (Страница 345)

347
MIDI Implementation
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v0.02
LOCATE [MCP]
Format2—LOCATE [TARGET]
Status
Data byte Status
F0H 7FH, Dev, 06H, 44H, 06H, 01H, F7H
hrH, mnH, scH, frH, ffH
Byte Remarks
F0H Exclusive status
7FH Universal System Exclusive Realtime Header
Dev Device ID (7FH)
06H MMC command message
44H LOCATE (MCP)
06H Byte count
01H “TARGET” sub-Command
hrH, mnH, scH, frH, ffH Standard Time Specification with subframes
F7H
EOX (End of Exclusive)
* If the efficient Maker of the locate switch is pressed or when moved, the BR-1200CD
transmits this message.
MIDI Time Code Command
Full Message
Basic operation of quarter frame messages will be handled.
Status
Data Byte Status
F0H 7FH, Dev, 01H, 01H, hrH, mnH, scH, frH F7H
Byte Remarks
F0H Exclusive status
7FH Realtime Universal System Exclusive Header
Dev Device ID (7FH)
01H sub-ID #1 (MIDI Time code)
01H sub-ID #2 (Full message)
hrH hours and type: 0 yy zzzzz
yy type:
00 = 24 Flame/sec
01 = 25 Flame/sec
10 = 30 Flame/sec (Drop Format)
11 = 30 Flame/sec (Non Drop Format)
zzzzz: Hours (00 - 23)
mnH Minutes (00 - 59)
scH Seconds (00 - 59)
frH Frames (00 - 29)
F7H EOX (End of Exclusive)
* This message is transmitted when the song position moves.
3. Supplementary material
Decimal/Hexadecimal table
(hexadecimal values are indicated by a following “H”)
MIDI uses 7-bit hexadecimal values to indicate data values and the address and size of
exclusive messages. The following table shows the correspondence between decimal and
hexadecimal numbers.
+——————+——————++——————+——————++——————+——————++——————+——————+
| D | H || D | H || D | H || D | H |
+——————+——————++——————+——————++——————+——————++——————+——————+
| 0 | 00H || 32 | 20H || 64 | 40H || 96 | 60H |
| 1 | 01H || 33 | 21H || 65 | 41H || 97 | 61H |
| 2 | 02H || 34 | 22H || 66 | 42H || 98 | 62H |
| 3 | 03H || 35 | 23H || 67 | 43H || 99 | 63H |
| 4 | 04H || 36 | 24H || 68 | 44H || 100 | 64H |
| 5 | 05H || 37 | 25H || 69 | 45H || 101 | 65H |
| 6 | 06H || 38 | 26H || 70 | 46H || 102 | 66H |
| 7 | 07H || 39 | 27H || 71 | 47H || 103 | 67H |
| 8 | 08H || 40 | 28H || 72 | 48H || 104 | 68H |
| 9 | 09H || 41 | 29H || 73 | 49H || 105 | 69H |
| 10 | 0AH || 42 | 2AH || 74 | 4AH || 106 | 6AH |
| 11 | 0BH || 43 | 2BH || 75 | 4BH || 107 | 6BH |
| 12 | 0CH || 44 | 2CH || 76 | 4CH || 108 | 6CH |
| 13 | 0DH || 45 | 2DH || 77 | 4DH || 109 | 6DH |
| 14 | 0EH || 46 | 2EH || 78 | 4EH || 110 | 6EH |
| 15 | 0FH || 47 | 2FH || 79 | 4FH || 111 | 6FH |
| 16 | 10H || 48 | 30H || 80 | 50H || 112 | 70H |
| 17 | 11H || 49 | 31H || 81 | 51H || 113 | 71H |
| 18 | 12H || 50 | 32H || 82 | 52H || 114 | 72H |
| 19 | 13H || 51 | 33H || 83 | 53H || 115 | 73H |
| 20 | 14H || 52 | 34H || 84 | 54H || 116 | 74H |
| 21 | 15H || 53 | 35H || 85 | 55H || 117 | 75H |
| 22 | 16H || 54 | 36H || 86 | 56H || 118 | 76H |
| 23 | 17H || 55 | 37H || 87 | 57H || 119 | 77H |
| 24 | 18H || 56 | 38H || 88 | 58H || 120 | 78H |
| 25 | 19H || 57 | 39H || 89 | 59H || 121 | 79H |
| 26 | 1AH || 58 | 3AH || 90 | 5AH || 122 | 7AH |
| 27 | 1BH || 59 | 3BH || 91 | 5BH || 123 | 7BH |
| 28 | 1CH || 60 | 3CH || 92 | 5CH || 124 | 7CH |
| 29 | 1DH || 61 | 3DH || 93 | 5DH || 125 | 7DH |
| 30 | 1EH || 62 | 3EH || 94 | 5EH || 126 | 7EH |
| 31 | 1FH || 63 | 3FH || 95 | 5FH || 127 | 7FH |
+——————+——————++——————+——————++——————+——————++——————+——————+
D: decimal
H: hexadecimal
Decimal expressions such as used for MIDI channel, Bank Select, and Program Change will
be the value 1 greater than the decimal value given in the above table.
Since each MIDI byte carries 7 significant data bits, each byte can express a maximum of 128
different values. Data for which higher resolution is required must be transmitted using two
or more bytes. For example a value indicated as a two-byte value of aa bb HH would have a
value of aa x 128 + bb.
For a signed number (+/-), 40H = -64, 00H = 0, and 3FH = +63. (i.e., the decimal equivalent
will be 64 less than the decimal value given in the above table.) For a two-byte signed
number, 40 00H = -8192, 00 00H = 0, and 3F 7FH = +8191.
Hexadecimal notation in two 4-bit units is used for data indicated as `nibbled’. The nibbled
two-byte value of 0a 0b H would be a x 16 + b.
<Example1>
What is the decimal equivalent of 5AH?
From the above table, 5AH = 90.
<Example2>
What is the decimal equivalent of the 7-bit hexadecimal values 12 34H?
From the above table, 12H = 18 and 34H = 52
Thus, 18 x 128 + 52 = 2356
<Example3>
What is the decimal equivalent of the nibbled expression 0A 03 09 0DH?
From the above table, 0AH = 10, 03H = 3, 09H = 9, 0DH = 13
Thus, the result is ((10 x 16 + 3) x 16 + 9) x 16 + 13 = 41885
<Example4>
What is the nibbled equivalent of the decimal number 1258?
16 ) 1258
16 ) 78...10
16 ) 4...14
0... 4
From the above table, 0=00H, 4=04H, 14=0EH, 10=0AH
Thus the result is 00 04 0E 0AH