msm9810 Oki Semiconductor, msm9810 Datasheet - Page 22

• Manufacturer Part Number: msm9810
• Description: 8-channel Mixing Oki Adpcm Type Voice Synthesis Lsi
• Manufacturer: Oki Semiconductor

¡ Semiconductor
the TMP register. Table 9-4 shows the correspondence between data input (D7-D0) and channels.
For serial input, the sequence of D7-D0 and serial input data is shown in Figure 8-2.
When the START command is input, data stored in the TMP register is set at the start register,
and voice synthesis processing starts. For example, when all “ 1” is written from the data bus to
the TMP register and the START command is input, all channels start voice synthesis
simultaneously.
Input the START command when the status signal (NCR or BUSY) of the channel to be started
is at “H”. When NCR is “L”, input is disabled.
Figure 9-1 shows the flowchart when the START command is input.
stored in the TMP register. Table 9-5 shows the correspondence between data input (D7-D0) and
channels.
9-1 START Command
The START command starts voice synthesis of the channel corresponding to the data stored in
9-2
The STOP command stops voice synthesis processing of the channel corresponding to data
STOP Command
Table 9-4 Correspondence between D7-D0 and Channels
START command input
Table 9-5 Correspondence between D7-D0 and channels
Data bus
Corresponding channel
Subcommand input
Data bus
Corresponding channel
RD pulse input
NCRn="H"
Figure 9-1 START Command Input Flow
YES
CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1
D7
NO
CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1
D7
D6
D6
NCRn corresponding to each channel is output
to D7-D0
Check that D7-D0 corresponding to the channel
to start voice synthesis is "H".
After setting "H" to D7-D0 corresponding to the
channel to start voice synthesis from the data
bus, input the WR pulse. (Set CMD to "H".)
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
MSM9810
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