Digi NS9210 User Manual

Page 51

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51

The I/O

expander

is a Philips PCA9554D at I

2

C address 0x20 / 0x21. The pins are

allocated as shown:

Pin

Signal

1

IO_0

2

IO_1

3

IO_2

4

IO_3

5

IO_4

6

IO_5

7

IO_6

8

IO_7

9

GND