PCA9547_2

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.

Product data sheet

Rev. 02 — 12 September 2006

11 of 26

Philips Semiconductors

PCA9547

7.4 Bus transactions

Data is transmitted to the PCA9547 control register using the Write mode as shown in

Figure 12.

Data is read from PCA9547 using the Read mode as shown in Figure 13.

Fig 12. Write control register

Fig 13. Read control register

002aaa988

XXXX

B3

B2

B1

B0

1

1

0

A2

A1

A0

0

A

S

1

A

P

slave address

START condition

R/W

acknowledge

from slave

acknowledge

from slave

control register

SDA

STOP condition

002aaa989

XXXX

B3

B2

B1

B0

1

1

0

A2

A1

A0

1

A

S

1

NA

P

slave address

START condition

R/W

acknowledge

from slave

no acknowledge

from master

control register

SDA

STOP condition

last byte