pca9543bpw NXP Semiconductors, pca9543bpw Datasheet - Page 10
pca9543bpw
Manufacturer Part Number
pca9543bpw
Description
Pca9543a/pca9543b/pca9543c 2-channel I2c-bus Switch With Interrupt Logic And Reset
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9543BPW.pdf
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NXP Semiconductors
PCA9543A_43B_43C_4
Product data sheet
7.5 Bus transactions
Data is transmitted to the PCA9543A control register using the Write mode as shown in
Figure
Data is read from PCA9543A using the Read mode as shown in
Fig 13. Write control register
Fig 14. Read control register
SDA
SDA
13.
START condition
START condition
S
S
1
1
1
1
slave address
slave address
1
1
Rev. 04 — 20 October 2006
0
0
0
0
2-channel I
A1
A1
A0
A0
R/W
R/W
0
1
2
C-bus switch with interrupt logic and reset
A
A
acknowledge
from slave
acknowledge
from slave
PCA9543A/43B/43C
X
X
X
X INT1 INT0 X
X
control register
control register
X
X
Figure
X
X
no acknowledge
B1
acknowledge
B1
© NXP B.V. 2006. All rights reserved.
14.
from master
from slave
STOP condition
STOP condition
B0
B0
last byte
002aab182
002aab183
NA
A
10 of 23
P
P
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