YMF721 Datasheet, PDF (32/41 Pages) LSI Computer Systems – FM + Wavetable Synthesizer LSI

YMF721
i) RPN
This is a message to set Pitch Bend Sensitivity and Tuning of each part.
After the modified parameter is designated by RPN MSB and RPN LSB, set the parameter value at
Data Entry.
Control No.
100
101
Parameter
RPN LSB
RPN MSB
Data range
0 to 127
0 to 127
RPN
MSB/LSB
00h 00H
00H 01H
00H 02H
Data Entry
MSB/LSB
mmH ---
mmH llH
mmH ---
Pitch Bend Sensitivity
mmH : 00H -18H (0-24 semitone)
------ : don’t care
2 octaves in semitone steps
Set to 2 semitones when powered on
Master Fine Tuning (-100¢ to 100¢)
mmH,llH : 00H,00H - 40H,00H - 7FH,7FH
(-8192*100/8192 to 0 +8192*100/8192¢)
Master Coarse Tuning (-24 - 0 - +24 semitone)
mmH : 28H -40H - 58H
--- : don’t care
2-2-3. Program Change <CnH> <Program No.>
This is a message to select a tone (voice) used in each part. GM tone (Bank Select MSB 0) or drum kit
(Bank Select MSB 127) is received by combination with a Bank Select.
GM tone : 128 tones (Program No. 0 to 127)
Drum kit : 9 sets (Program No. 0, 1, 8, 16, 24, 25, 32, 40, 48)
2-2-4. Pitch Bend <EnH> <Data-L> <Data-H>
This is a message to inform Pitch Bend information of each part.
Recieving the Pitch Bend message is valid only when GM tone, and invalid when drum kit.
Parameter
Data LSB
Data MSB
Data range
0 to 127
0 to 127
The resolution is 14 bits (-8192 to 8191).
2-2-5. Channel After Touch <DnH> <Data>
This is a message to inform a degree of pressure after playing a keyboard.
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July 10, 1997