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444
MIDI Implementation
4. Data transmission (Sequencer Section)
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4.1 Messages transmitted during playing
Recorded messages are transmitted during playback.
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4.2 Messages that are generated and transmitted
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4.2.1 Messages Appearing When Synchronizing
with Other Devices
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System Common Messages
* Sent when MIDI Clock parameter (SONG SETUP/SYNC) is set to On.
●
Song Position Pointer
ll, mm=value: 00, 00H - 7F, 7FH (0 - 16383)
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System Realtime Messages
* Sent when MIDI Clock parameter (SONG SETUP/SYNC) is set to On.
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Timing Clock
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Start
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Continue
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Stop
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Quarter Frame Messages
* Sent when MTC Output parameter (SONG SETUP/SYNC) is set to On. Furthermore,
sending a Quarter Frame Message with “00h00m00s00f00” at the beginning of the song
adds the MTC Offset Time parameter (SONG SETUP/SYNC).
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MIDI Time Code Quarter Frame Messages
MIDI Time Code Quarter Frame Messages can be transmitted while the sequencer is
running (Playing or Recording) if the Sync Mode parameter (System/Sync/Tempo) is
MASTER and MTC Sync Output parameter (System/Sync/Tempo) is ON.
Status Second
F1H mmH (= 0nnndddd)
nnn = Message type:
0 = Frame count LS nibble
1 = Frame count MS nibble
2 = Seconds count LS nibble
3 = Seconds count MS nibble
4 = Minutes count LS nibble
5 = Minutes count MS nibble
6 = Hours count LS nibble
7 = Hours count MS nibble
dddd = 4 bit nibble data: h - FH (0 - 15)
Bit Field is assigned as follows.
Frame Count xxxyyyyy
xxx Reserved (000)
yyyyy Frame No.(0-29)
Seconds Count xxyyyyyy
xx Reserved (00)
yyyyyy Seconds (0-59)
Minutes Count xxyyyyyy
xx Reserved (00)
yyyyyy Minutes (0-59)
Hours Count xyyzzzzz
x Reserved (0)
yy Time Code type
0 = 24 Frames / Sec
1 = 25 Frames / Sec
2 = 30 Frames / Sec (Drop Frame)
3 = 30 Frames / Sec (Non Drop Frame
zzzzz Hours (0-23)
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System Exclusive Message
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MIDI Time code
❍
Full Message
Full Messages are used, which encode the complete time into a single message.
This message transmitted when the song position moves.
Status
Data Byte Status
F0H, 7FH xxH, 01H, 01H, hrH, mnH, scH, frH F7H
F0H, 7FH: Realtime Universal System Exclusive Header
xxH: 7F (Device ID)
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
11 = 30 Flame/sec
zzzzz: Hours (00 - 23)
mnH: Minutes (00 - 59)
scH: Seconds (00 - 59)
frH: Frames (00 - 29)
F7H: EOX (End of Exclusive)
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MIDI Machine Control (MMC)
* Not received when the MMC Mode parameter (System/Sync/Tempo) is Master.
❍
STOP (MCS)
Status Data byte Status
F0H 7FH, dev, 06H, 01H F7H
Byte Remarks
F0H Exclusive status
7FH Universal System Exclusive Realtime Header
7FH Device ID
06H MMC command message
01H STOP (MCS)
F7H EOX (End of Exclusive)
❍
DEFFERRED PLAY (MCS)
Status
Data byte Status
F0H 7FH, dev, 06H, 03H F7H
Byte Remarks
F0H Exclusive status
7FH Universal System Exclusive Realtime Header
7FH Device ID
06H MMC command message
03H DEFERRED PLAY (MCS)
F7H EOX (End of Exclusive)
Status
2nd byte 3rd byte
F2H
llH mmH
Status
F8H
Status
FAH
Status
FBH
Status
FCH
Status
2nd byte
F1H
mmH (= 0nnndddd)
ECS05_manual_e.book 444 ページ ２００５年１１月３０日 水曜日 午前１１時１４分