pca9546abs NXP Semiconductors, pca9546abs Datasheet - Page 10

• Manufacturer Part Number: pca9546abs
• Description: 4-channel I2c Switch With Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PCA9546A_4
Product data sheet
7.5 Bus transactions
Data is transmitted to the PCA9546A control register using the Write mode as shown in
Figure
Data is read from PCA9546A using the Read mode as shown in
Fig 12. Write control register
Fig 13. Read control register
SDA
SDA
12.
START condition
START condition
S
S
1
1
1
1
slave address
slave address
1
1
Rev. 04 — 29 August 2006
0
0
A2
A2
A1
A1
A0
A0
R/W
R/W
0
1
A
A
acknowledge
from slave
acknowledge
from slave
X
X
4-channel I
X
X
X
X
control register
control register
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
X
X
B3
B3
2
C-bus switch with reset
Figure
PCA9546A
B2
B2
no acknowledge
B1
acknowledge
B1
13.
from master
from slave
STOP condition
STOP condition
B0
B0
last byte
002aab196
002aab197
NA
A
10 of 25
P
P