PCA9547_2

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

Product data sheet

Rev. 02 — 12 September 2006

7 of 26

Philips Semiconductors

PCA9547

6.3 RESET input

The RESET input is an active LOW signal which may be used to recover from a bus fault

6.4 Power-on reset

lowered below 0.2 V to reset the device.

Table 4.

Control register

Write = channel selection; Read = channel status

D7

D6

D5

D4

B3

B2

B1

B0

Command

X

X

X

X

0

X

X

X

no channel selected

X

X

X

X

1

0

0

0

channel 0 enabled

X

X

X

X

1

0

0

1

channel 1 enabled

X

X

X

X

1

0

1

0

channel 2 enabled

X

X

X

X

1

0

1

1

channel 3 enabled

X

X

X

X

1

1

0

0

channel 4 enabled

X

X

X

X

1

1

0

1

channel 5 enabled

X

X

X

X

1

1

1

0

channel 6 enabled

X

X

X

X

1

1

1

1

channel 7 enabled

00001000

channel 0 enabled;

power-up/reset default state