PCA9543A 데이터 시트보기 (PDF) - Philips Electronics

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PCA9543A

2-channel I2C switch with interrupt logic and reset

Philips Electronics 

Philips Semiconductors

PCA9543A

2-channel I2C switch with interrupt logic and reset

8.5 Bus transactions

Data is transmitted to the PCA9543A control register using the Write mode as shown in

Figure 11.

slave address

control register

SDA S 1 1 1 0 0 A1 A0 0 A X X X X X X B1 B0 A P

START condition

R/W acknowledge

from slave

acknowledge

from slave

STOP condition

002aab182

Fig 11. Write control register

Data is read from PCA9543A using the Read mode as shown in Figure 12.

slave address

control register

last byte

SDA S 1 1 1 0 0 A1 A0 1 A X X INT1 INT0 X X B1 B0 NA P

START condition

Fig 12. Read control register

R/W acknowledge

from slave

no acknowledge

from master

STOP condition

002aab183

9397 750 14316

Product data sheet

Rev. 03 — 21 March 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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