OKI

ML2502

ML2502 Data Sheet (Revision 8.0)

6

1.4

Phrase 2 Recording Operation

(1)

Keep on inputting “H” level to the REC2 pin to power up and start recording from the top

address of the memory.

Recording goes on while the REC2 pin being held “H” level.

(2)

The LSI automatically ends recording when the last address of the memory has been

reached.

(3)

The LSI automatically shifts to low-power consumption mode after recording ends.

(4)

To stop recording for Phrase 2

before reaching the last address, bring the REC2 pin down

to “L” level. The LSI automatically shifts to low-power consumption mode after recording

stops.

(5)

During recording operation any signal input to other pins than the REC2 is disregarded.

Note: Re-recording always causes to overwrite the existing recording data for a given phrase.

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

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