OKI
ML2502 Demo Board
6
Figure 1.4 Timing Chart for Phrase 2 Recording Operation
1-5. Phrase 2 Playback Operation
(1)
Input a “H” pulse to the PLAY2 pin to power up and start playback from the
center address of the memory.
(2)
The LSI automatically ends playback when the last address of the recorded
phrase has been reached.
(3)
The LSI automatically shifts to low-power consumption mode after playback
ends.
(4)
To stop playback of Phrase 2 before reaching its last address, input a “H” pulse
again to the PLAY1 or PLAY2 pin. This will cause the LSI to stop playback and
then automatically shift to low-power consumption mode.
(5)
During playback operation signal input to the PLAY1 or PLAY2 pin only is valid,
any other signal input is disregarded
Figure 1.5 Timing Chart for Phrase 2 Playback Operation
1.6 Phrase 2 Erasing Operation
(1)
While inputting “H” level to the ERASE pin, input a “H” pulse to the REC2 pin to
start erasing Phrase 2.
Start
Stop
Invalid Input
Stopping Process
Power Down
Powering Up
Recording
Power Down
Powering Down
MON
REC2
REC1
Status
Start Pulse
Stop Pulse
Power Down
Powering Up
Playing Back
Power Down
Powering Down
MON
PLAY2
PLAY1
Status
Stop
