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

MSM9810

7-2 Serial Input Interface

In the serial input interface, the microcomputer controls the LSI via 8 pins of RESET, CMD, CS,

WR, RD, SD, SI and SO. In parallel input, data is output from D7-D0, but in serial input, data for

D7-D0 is input in serial from MSB using SD and SI.

Figure 7-3 shows the command and subcommand input timing, and Figure 7-4 shows read

timing.

CMD(I)

tDW

tDW

tCC

CS(I)

tCW

tCW

WR(I)

SD(I)

SI(I)

tSDS

tSSD

tW(SCK)

Figure 7-3 Serial input write cycle timing

CS(I)

tCR

tCR

RD(I)

SO(I)

SI(I)

Figure 7-4 Serial input read cycle timing

17/31

Share Link: