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PRODUCT MANUAL - BARIX X8 - V01.05 - 10/26/2006
Connecting I/O
The BARIX X8 features 8 I/Os which are set to work as inputs by
default (Reg. 276=00h). The internal pull up resistors are enabled
by default (Reg. 273=FFh). Buttons or contact closures can be
attached to each input and to signal ground as shown in the
schematic below.
I7
I0
The 8 I/Os of the BARIX X8 can be set to work as outputs
(Reg. 276=FFh). LEDs can be attached between each output and
the 5VDC source as shown in the schematic below.
R7
R0
LED7
LED0
Connecting the I/O · 12
Contacts on inputs
LEDs on outputs