Multi-purpose I/O
EPM-19 Hardware Reference Manual
29
User I/O Connector
The 40-pin J9 I/O connector incorporates the signals for the following:
Four USB ports
Eight GPIO lines (these are functionally muxed with six timer I/O signals per FPGA
registers)
Three LEDs (two Ethernet link status LEDs and a programmable LED)
Power switch
Push-button reset switch
Speaker output
This connector uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
Figure 18 shows the location and pin orientation of the user I/O connector.
Figure 18. Location and Pin Orientation of User I/O Connector