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ChannelSelectionBits(Read/Write)

Channel1

Channel0

Channel2

Channel3

Channel4

Channel5

Channel6

Channel7

B7

B6

B5

B4

B3

B2

B1

B0

RESET Input

PCA9548A

WITH RESET

SCPS143C – OCTOBER 2006 – REVISED JUNE 2007

Figure 5. Control Register

Command Byte Definition

CONTROL REGISTER BITS

COMMAND

B7

B6

B5

B4

B3

B2

B1

B0

0

Channel 0 disabled

X

X

X

X

X

X

X

1

Channel 0 enabled

0

Channel 1 disabled

X

X

X

X

X

X

X

1

Channel 1 enabled

0

Channel 2 disabled

X

X

X

X

X

X

X

1

Channel 2 enabled

0

Channel 3 disabled

X

X

X

X

X

X

X

1

Channel 3 enabled

0

Channel 4 disabled

X

X

X

X

X

X

X

1

Channel 4 enabled

0

Channel 5 disabled

X

X

X

X

X

X

X

1

Channel 5 enabled

0

Channel 6 disabled

X

X

X

X

X

X

X

1

Channel 6 enabled

0

Channel 7 disabled

X

X

X

X

X

X

X

1

Channel 7 enabled

No channel selected,

0

0

0

0

0

0

0

0

power-up/reset default state

The RESET input is an active-low signal that may be used to recover from a bus-fault condition. When this

7

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Not Recommended For New Designs