msm9811 Oki Semiconductor, msm9811 Datasheet - Page 17

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

FUNCTIONAL DESCRIPTION
Microcontroller Interface
The microcontroller interface includes two interface circuits, parallel interface and serial interface.
The statuses of each pin both in parallel interface mode and in serial interface mode are shown below.
OKI Semiconductor
D7 (I/O)
D6 (I/O)
D5 (I/O)
D4 (I/O)
D3 (I/O)
D2 (I/O)
D1 (I/O)
D0 (I/O)
Parallel I/O interface
Data I/O pins
SERIAL = “L ”
SD (I)
SI (I)
SO (O)
UD (I)
SR3 (O)
SR2 (O)
SR1 (O)
SR0 (O)
Serial data input pin
Serial clock input pin
Serial data output pin
Fix this pin at GND level
Channel status signal output pin
Serial I/O interface
SERIAL = “H”
FEDL9811FULL-04
MSM9811
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