4.2.3 GPIO Header

I/O1 Xplained Pro features a 2-pin header with access to the two generic GPIO lines on the 20-pin extension connector. These lines are routed from the 20-pin extension header through 39Ω series resistors to the 2-pin GPIO header.

Table 4-4. GPIO Header
Pin on EXT connectorSilk screen marking
5GPIO1
6GPIO2