Truth Tables

Last Updated 1/16/07

10, 12, 16 & 20 Second Chips

 
Play While Low
Play Once
Play Continuous
Record
Record
H
H
H
H
L
Mom
L
L
H(3)
H(1,3)
H
Cont
H(3)
H(3)
L
L(2)
H
J8
1-2
2-3
1-2
2-3
1-2(4)
Notes:
1. A transition pulse from low to high will terminate the loop playback.
2. A transition pulse from high to low will initiate the playback. Loop playback continues regardless of the state of the input. (see note 1)

3. All inputs are pulled high so no active high signal is required.

4. If J8 is set for 2-3 while recording the sound chip will loop until stopped, recording over itself, giving unpredictable results.

60, 75, 90 & 120 Second Chips

 
Play Once
Play Continuous
Record
Record
H
H
L
Mom
L
L
L(1)
Cont
L
L
L
J8
1-2
2-3
1-2(4)
Notes:
1. A transition pulse from high to low will initiate recording.
2.

3.

4. If J8 is set for 2-3 while recording the sound chip will loop until stopped, recording over itself, giving unpredictable results.

 

 

 

Photocell Trigger

J7
Cont
1-2
Mom
2-3