MSM6688 Datasheet, PDF (35/159 Pages) OKI electronic componets – ADPCM Solid-State Recorder IC

¡ Semiconductor
MSM6688/6688L
2. ROM playback
For playback of the voice data stored in the connected serial voice ROM, the playback area is
allocated indirectly to each fixed message phrase by setting phrase specifying pins CA0 to CA5 (63 phases).
The start address, stop address, sampling frequency, and ADPCM bit length which specify the
playback area for each phase are written in the index area of the serial voice ROM. When the playback
operation is started, the MSM6688 fetches these data from the index area.
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