MSM9844 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

MFG CO.

MSM9844

VOICE SYNTHESIS LSI with on-chip FIFO Memory

Oki Electric Industry 

¡ Semiconductor

Playback Timing with using External MCU and Memory

MSM9844

RESET (I)

MCU I/F

BUSY (O)

EMP (O)

MID (O)

FUL (O)

PLAY 1 2 3 4 5

Command Write Cycle

Data Write Cycle

AOUT (O)

1/2 VDD

Playback Timing with using DMA Controller

Output the last data

or Input STOP Command

End of Playback

RESET (I)

MCU I/F

BUSY (O)

DREQ (O)

DACK (I)

IOW (I)

EMP (O)

MID (O)

FUL internal

PLAY 1 2 3 4 5

Command Write Cycle

Data Write Cycle

No use CS,WR, and RD pins

AOUT (O)

1/2 VDD

Output the last data

or Input STOP Command

End of Playback

Page11

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