OPQ Programmer’s Guide V 1.1
21
6
OPQ register table
Reg
Bit
Notes
7
6
5
4
3
2
1
0
General
00H
BUSY
-
INT1
-
INT2 Read only
01H
Unused
02H
Unused
03H
?
?
?
?
?
?
?
?
Timer
04H
-
LDIS
LFO freq
LFO
05H
-
KEY3
KEY2
KEY1
KEY0
Channel nr
Triggers
06H...0FH
Unused
Algorithm / feedback / output
– channel specific
10H
OCH1
OCH2
Feedback
Algorithm
Channel 0
11H
OCH1
OCH2
Feedback
Algorithm
Channel 1
12H
OCH1
OCH2
Feedback
Algorithm
Channel 2
13H
OCH1
OCH2
Feedback
Algorithm
Channel 3
14H
OCH1
OCH2
Feedback
Algorithm
Channel 4
15H
OCH1
OCH2
Feedback
Algorithm
Channel 5
16H
OCH1
OCH2
Feedback
Algorithm
Channel 6
17H
OCH1
OCH2
Feedback
Algorithm
Channel 7
Vibrato / tremolo / echo
– channel specific
18H
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 0
19H
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 1
1AH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 2
1BH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 3
1CH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 4
1DH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 5
1EH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 6
1FH
Echo
Vibrato (FM)
-
-
Tremolo (AM)
Channel 7