msm9810b Oki Semiconductor, msm9810b Datasheet - Page 17

• Manufacturer Part Number: msm9810b
• Description: 8-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
SERIAL = “L”
Data I/O pins
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
Select pin for channel statuses output via SR3 to SR0
Channel 1 is output when UD is 0 and channel 5
when UD is 1.
Channel 2 is output when UD is 0 and channel 6
when UD is 1.
Channel 3 is output when UD is 0 and channel 7
when UD is 1.
Channel 4 is output when UD is 0 and channel 8
when UD is 1.
Serial I/O interface
SERIAL = “H”
FEDL9810BFULL-03
MSM9810B
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