MSM6688LGS-2K View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

View to exact match

MSM6688LGS-2K

ADPCM Solid-State Recorder IC

Oki Electric Industry 

¡ Semiconductor

MSM6688/6688L

Pin Symbol Type

Description

15

ROM

When low, selects the record/playback operation. When high, selects the ROM

I

playback operation.

56 REC/PLAY

Used to select the recording mode or the playback mode. This pin is invalid

I during the ROM playback operation. When low, selects the playback mode.

When high, selects the recording mode.

55

ST

When a low-level pulse is applied to this pin, the record/playback or ROM

I

playback is started.

54

SP

When a low-level pulse is applied to this pin, the record/playback or ROM

I

playback is stopped.

8

PAUSE

When a low-level pulse is applied to this pin, the record/playback or ROM

I

operation is stopped temporarily.

When a low level pulse is applied to this pin, all phase deletion or specified

phrase deletion can be performed according to the setting of pins CA0

7

DEL

through CA5,

I

ch00: All phase deletion

ch01 to ch3F: Specified phrase deletion

After powering up, be sure to input RESET signal and then to delete all phrases.

After completing this procedure, start the record/playback operation.

Input pins used to specify desired phases.

A total of 63 phrases can be specified independently for the record/playback

operation and the ROM playback operation.

1-6 CA0-CA5

13

4B/3B

CA5 CA4 CA3 CA2 CA1 CA0 Phrase No.

Remarks

LLLLLL

ch00

All phrase deletion

I

L L L L LH

ch01

L L L LH L

... ...

...

...

...

...

HHHHH L

ch02

A total of 63 phrases

...

can be used both for

record/playback and

ROM playback

ch3E

operation.

HHHHHH

ch3F

Input pin used to select one of two types of ADPCM bit length.

I

When low, selects the 3-bit ADPCM.

When high, selects the 4-bit ADPCM.

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