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setup proceDure For muLti-BoArD ArrAys
ENSURING SLAVE ADDRESSES DO NOT CONFLICT
There is a small DIP switch on the backside of the DC2028A.
It is used to set the slave address of an I/O expander which
allows the addition of multiple boards to a setup. The I/O
Figure 13. DIP Switch Set to All 0's (0x20)
DEMO MANUAL DC2028A
expander has a base address of 0x20. The DIP switch
settings set the offset. The three switches that may be
changed are labeled A0, A1, A2. Examples below set the
boards to addresses 0x20 and 0x27.
Figure 14. DIP Switch Set to All 1's (0x27)
dc2028af
15
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