Yamaha YM3806, Programmer'S Manual

Page: 26 / 30

OPQ Programmer’s Guide V 1.1 26
Envelope: attack rate / key scaler – operator specific
Reg
Bit
Channel / Op
7 6 5 4 3 2 1 0
80H
Key scaler Attack rate
Channel 0
Op0
81H
Key scaler Attack rate
Channel 1
82H
Key scaler Attack rate
Channel 2
83H
Key scaler Attack rate
Channel 3
84H
Key scaler Attack rate
Channel 4
85H
Key scaler Attack rate
Channel 5
86H
Key scaler Attack rate
Channel 6
87H
Key scaler Attack rate
Channel 7
88H
Key scaler Attack rate
Channel 0
Op1
89H
Key scaler Attack rate
Channel 1
8AH
Key scaler Attack rate
Channel 2
8BH
Key scaler Attack rate
Channel 3
8CH
Key scaler Attack rate
Channel 4
8DH
Key scaler Attack rate
Channel 5
8EH
Key scaler Attack rate
Channel 6
8FH
Key scaler Attack rate
Channel 7
90H
Key scaler Attack rate
Channel 0
Op2
91H
Key scaler Attack rate
Channel 1
92H
Key scaler Attack rate
Channel 2
93H
Key scaler Attack rate
Channel 3
94H
Key scaler Attack rate
Channel 4
95H
Key scaler Attack rate
Channel 5
96H
Key scaler Attack rate
Channel 6
97H
Key scaler Attack rate
Channel 7
98H
Key scaler Attack rate
Channel 0
Op3
99H
Key scaler Attack rate
Channel 1
9AH
Key scaler Attack rate
Channel 2
9BH
Key scaler Attack rate
Channel 3
9CH
Key scaler Attack rate
Channel 4
9DH
Key scaler Attack rate
Channel 5
9EH
Key scaler Attack rate
Channel 6
9FH
Key scaler Attack rate
Channel 7
Key scaler = 0H … 7H
Scaling light … heavy
Attack rate = 00H … 1FH
Attack time long … short