msm9811 Oki Semiconductor, msm9811 Datasheet - Page 33

• Manufacturer Part Number: msm9811
• Description: 4-channel Mixing Oki Adpcm Type Voice Synthesis Lsi
• Manufacturer: Oki Semiconductor

FADR Command
The FADR command transfers data stored in the TMP register to the phrase address register of the corresponding
channel at the rise of the WR pulse.
For the phrase address, the user specification phrases have been set by an analysis tool, and the playback system,
sampling frequency and start and stop address of voice data have been registered to the address management area.
When the phrase address is set and the START command is input, the LSI reads data of the address management
area, and starts voice synthesis.
Since the phrase address is set by D7-D0, a maximum of 256 phrases can be set. The edit function can be used for
phrase addresses, so not only one phrase but combinations with other phrases are possible.
DADR Command
The DADR command transfers data stored in the TMP (1-7) register to the start and stop address register of the
corresponding channel at the rise of the WR pulse.
For the direct address, the playback system, sampling frequency, and start and stop addresses of voice data are
directly input from the microcomputer without using the address management area.
Direct address playback system is available with channel 1 to 4, and not available with channel 5 to 8.
Since the phrases that can be set at a phrase address is a maximum of 256, if voice data exceeds 256 phrases, use
this command. Data on the playback system, sampling frequency, and start and stop address of voice data is
displayed when an analysis tool is used.
Data on the playback system, sampling frequency, and start and stop address of voice data is input to the TMP1 to
TMP7 registers divided in 7 steps, unlike the data input of other commands.
Figure 7 shows the input method.
OKI Semiconductor
D7-D0(I)
CMD (I)
WR (I)
CS (I)
Stores TMP1
register data
Stores TMP2
register data
Stores TMP3
register data
Figure 7 DADR Input Timing
Stores TMP4
register data
Stores TMP5
register data
Stores TMP6
register data
Stores TMP7
register data
Executes command
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