MSM9811GA View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM9811GA

4-Channel Mixing OKI ADPCM Type Voice Synthesis LSI

Oki Electric Industry 

OKI Semiconductor

FEDL9811FULL-04

MSM9811

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.

SERIAL = “L”

Parallel I/O interface

D7 (I/O)

D6 (I/O)

D5 (I/O)

D4 (I/O) Data I/O pins

D3 (I/O)

D2 (I/O)

D1 (I/O)

D0 (I/O)

SD (I)

SI (I)

SO (O)

UD (I)

SR3 (O)

SR2 (O)

SR1 (O)

SR0 (O)

SERIAL = “H”

Serial I/O interface

Serial data input pin

Serial clock input pin

Serial data output pin

Fix this pin at GND level

Channel status signal output pin

17/44

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