Yamaha Disklavier MX-100A Service Manual page 13

Reception Conditions
Reception Data
• CHANNEL INFORMATION
1) CHANNEL VOICE MESSAGES
Key Off
Status
Note No.
Velocity
Key On/Off
Status
Note No.
Velocity
Control Change
Status
Control No.
Control Value
Control No.
c = 64 Sustain pedal
c = 67 Soft pedal
• SYSTEM INFORMATION
1) SYSTEM REALTIME MESSAGES
Active Sensing
Status
Note 4: When this code is received, sensing begins. If there is neither status nor data
for an interval of 300msec, the piano keyboard and pedals become OFF, as do
the Note ON of MIDI OUT and the Sustain Pedal ON.
10
1 0 0 0 n n n n (8n)
0 k k k k k k k
0 v v v v v v v
1 0 0 1 n n n n (9n)
k k k k k k k
0
0 v v v v v v v
1 0 1 1 n n n n (Bn)
0 c c c c c c c
0 v v v v v v v
1 1 1 1 1 1 1 0 (FE): Note 4
n = channel number (0~15)
k = 21 (A )~108 (C )
-1 7
v = ignored
n = channel number
k = 21 (A )~108 (C )
-1 7
v = 0: key off
v = 1~127: key on
n = channel number (0~15)
Control Value
v = 0: off, 31: on
v = 0: off, 31: on