1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com Nexys 4 FPGA Board Reference Manual Revised April 11, 2016 This manual applies to the Nexys 4 rev. B Overview The Nexys 4 board is a complete, ready-to-use digital circuit development platform based on the latest Artix-7 Field Programmable Gate Array (FPGA) from Xilinx. With its large, high-capacity FPGA (Xilinx part number XC7A100T-1CSG324C), generous external memories, and collection of USB, Ethernet, and other ports, the Nexys 4 can host designs ranging from introductory combinational circuits to powerful embedded processors. Several built-in peripherals, including an accelerometer, temperature sensor, MEMs digital microphone, a speaker amplifier, and a lot of I/O devices allow the Nexys 4 to be used for a wide range of designs without needing any other components. The Artix-7 FPGA is optimized for high performance logic, and offers more capacity, higher performance, and more resources than earlier designs. Artix-7 100T features include: 15,850 logic slices, each with four 6-input LUTs and 8 flip-flops 4,860 Kbits of fast block RAM Six clock management tiles, each with phase-locked loop (PLL) 240 DSP slices Internal clock speeds exceeding 450MHz On-chip analog-to-digital converter (XADC) The Nexys 4 also offers an improved collection of ports and peripherals, including: 16 user LEDs Two 4-digit 7-segment displays 16 user switches Two tri-color LEDs Micro SD card connector USB-UART Bridge PWM audio output PDM microphone 12-bit VGA output Temperature sensor 10/100 Ethernet PHY 3-axis accelerometer Serial Flash Four Pmod ports 16Mbyte CellularRAM Digilent USB-JTAG port for USB HID Host for mice, Pmod for XADC signals FPGA programming and keyboards and memory sticks communication Copyright Digilent, Inc. All rights reserved. DOC :502-274 Page 1 of 29 Other product and company names mentioned may be trademarks of their respective owners. Nexys 4 FPGA Board Reference Manual The Nexys 4 is compatible with Xilinxs new high-performance Vivado Design Suite as well as the ISE toolset, which includes ChipScope and EDK. Xilinx offers free Webpack versions of these toolsets, so designs can be implemented at no additional cost. 24 23 22 21 20 19 18 17 1 16 2 15 14 3 13 12 4 4 5 11 6 4 4 10 7 8 9 Figure 1. Nexys 4 board features Callout Component Description Callout Component Description 1 Power select jumper and battery header 13 FPGA configuration reset button 2 Shared UART/ JTAG USB port 14 CPU reset button (for soft cores) 3 External configuration jumper (SD / USB) 15 Analog signal Pmod port (XADC) 4 Pmod port(s) 16 Programming mode jumper 5 Microphone 17 Audio connector 6 Power supply test point(s) 18 VGA connector 7 LEDs (16) 19 FPGA programming done LED 8 Slide switches 20 Ethernet connector 9 Eight digit 7-seg display 21 USB host connector 10 JTAG port for (optional) external cable 22 PIC24 programming port (factory use) 11 Five pushbuttons 23 Power switch 12 Temperature sensor 24 Power jack Copyright Digilent, Inc. All rights reserved. Page 2 of 29 Other product and company names mentioned may be trademarks of their respective owners.