MSM9810 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM9810

8-channel Mixing OKI ADPCM Type Voice Synthesis LSI

Oki Electric Industry 

¡ Semiconductor

CS

RD(I)

SI(I)

SO(O)

UD

SR3

SR2

SR1

SR0

CH8-5

CH8

CH7

CH6

CH5

D7 D6 D5 D4 D3 D2 D1 D0

CH4-1

CH4

CH3

CH2

CH1

MSM9810

Figure 8-2 Read timing in serial input interface

In serial input interface, status signals are constantly output from D3/SR3 to D0/SR0 pins.

Selection of NCR and BUSY is controlled by the NCR/BUSY pin. Since there are only four D3/

SR3 to D0/SR0 pins, 8 channels of status signals are selected by control of the D4/UD pin. Table

8-2 shows the relationship between D4/UD pin and D3/SR3 to D0/SR0 pins.

Table 8-2 Correspondence between D4/UD and D3/SR3 to D0/SR0

D3/SR3

D2/SR2

D1/SR1

D0/SR0

D4/UD="L"

Channel 4

Channel 3

Channel 2

Channel 1

D4/UD="H"

Channel 8

Channel 7

Channel 6

Channel 5

19/31

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