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MZ-2000 MIDI Implementation
2.7.7 Poly Mode On
Format
Byte 1 Byte 2 Byte 3
BNH 7FH vvH
n : Voice Channel Number = 0H to FH (Ch1 to Ch16)
vv : Number of Mono Mode Channels = 00H to 10H
Receive
Receipt of the Poly Mode On message changes the Channel n setting to Mode 3.
The Poly Mode On message functions as the All Sound Off message and All Note Off message.
Send
The Poly Mode On message cannot be sent.
3 System Messages
3.1 System Real-Time Messages
3.1.1 Active Sensing
Format
Byte 1
FEH
Receive
After the Active Sensing message is received, the MZ-2000 stands by for 400 msec waiting for
another message to be sent. If nothing is received within 400 msec, the MZ-2000 performs the All
Sound Off, All Note Off, and Reset All Controller procedures.
Send
The Active Sensing message cannot be sent.
3.1.2 Timing Clock
Format
Byte 1
F8H
Receive
The Timing Clock message cannot be received.
Send
The Timing Clock message is sent whenever an accompaniment or a song playback is performed
while the MZ-2000's Realtime Message Out feature is turned on.
3.1.3 Start
Format
Byte 1
FAH
Receive
The Start message cannot be received.
Send
The Timing Clock message is sent whenever an accompaniment or a song playback is performed
while the MZ-2000's Realtime Message Out feature is turned on.
3.1.4 Stop
Format
Byte 1
FCH
Receive
The Stop message cannot be received.
Send
The Timing Clock message is sent whenever an accompaniment or a song playback is performed
while the MZ-2000's Realtime Message Out feature is turned on.
3.2 System Common Messages
The MS-2000 does not support sending or receiving of system common messages.
3.3 System Exclusive Messages
3.3.1 Universal System Exclusive Messages
3.3.1.1 GM System On
Format
F0H 7EH 7FH 09H 01H F7H
Receive
The GM System On message is not received when Rx.Gm On = OFF.
Send
The GM System On message cannot be sent.
3.3.1.2 Master Volume
Format
F0H 7FH 7FH 04H 01H llH mmH F7H
ll : Master VolumeLSB
mm : Master VolumeMSB
Receive
The Master Volume message is always received.
Send
The Master Volume message is whenever a Fade In/Out operation is performed.