MSM6688_07 Datasheet, PDF (149/167 Pages) OKI electronic componets – ADPCM Solid-State Recorder IC

OKI Semiconductor
Flow Chart of Direct ROM Playback
FEDL6688-6688L-04
MSM6688/6688L
VDS command
SAMP command
CHAN command
ADRWR command
ADPCM bit length (BIT)
Set the command mode to mode 3 (MOD0 = 1, MOD1 = 1).
Specify the sampling frequency (SA0, SA1).
Select one of 64 phrases (CA0-CA5). Normally, specify ch3F.
Input the start address and stop address.
START command
Start of playback
No
RPM = 1?
Verify the start of playback.
Input record/playback
conditions to be modified
by the corresponding
commands.
Yes
RPM = 0?
Yes
Verify the end of playback.
No
No
Stop
playback?
Yes
STOP command
Stop of playback
No _{RPM = 0?}
Yes
Yes Continue
playback?
No
Verify the end of playback.
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