FPGA Design Demonstration BoardHardware User Guide 3-11I/O Line ConnectionsThere are 16 I/O lines that connect the XC3020A and XC4003EFPGAs. These are shown in the following table.Optional Crystal Oscillator (Y1)You can add a standard 4-pin crystal oscillator to the FPGA Demon-stration Board. The oscillator output drives the XC3020A XTL2 inputat pin 43 and the XC4003E PGCK1 input at pin 13.Prototype AreaThe Prototype area is a 0.1-inch grid of holes where you can addadditional circuitry to the demonstration board. A +5 V bus (compo-Table 3-5 I/O Line Connections for XC3020A and XC4003EDevicesI/O Line XC3020A Pin XC4003E Pin0 61 101 62 92 63 83 64 74 65 65 66 56 67 47 68 38 2 849 3 8310 4 8211 5 8112 6 8013 7 7914 8 7815 9 77
