Philips Semiconductors
PCA9548A
8-channel I2C switch with reset
8.5 Bus transactions
Data is transmitted to the PCA9548A control register using the Write mode as shown in
Figure 12.
slave address
control register
SDA S 1 1 1 0 A2 A1 A0 0 A B7 B6 B5 B4 B3 B2 B1 B0 A P
START condition
R/W acknowledge
from slave
acknowledge
from slave
STOP condition
002aab205
Fig 12. Write control register
Data is read from PCA9548A using the Read mode as shown in Figure 13.
slave address
control register
last byte
SDA S 1 1 1 0 A2 A1 A0 1 A B7 B6 B5 B4 B3 B2 B1 B0 NA P
START condition
Fig 13. Read control register
R/W acknowledge
from slave
no acknowledge
from master
STOP condition
002aab206
9397 750 13297
Product data sheet
Rev. 01 — 15 April 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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