SPI x4 Flash, 6J12 SPI Flash Programming Header | Xilinx UG518

Chapter 1: SP601 Evaluation Board

3. SPI x4 Flash

The Xilinx Spartan-6 FPGA hosts a SPI interface which is visible to the Xilinx iMPACT configuration tool. The SPI memory device operates at 3.0V; the Spartan-6 FPGA I/Os are 3.3V tolerant and provide electrically compatible logic levels to directly access the SPI flash through a 2.5V bank. The XC6SLX16-2CSG324 is a master device when accessing an external SPI flash memory device.

The SP601 SPI interface has two parallel connected configuration options (see Figure 1-7): an SPI X4 (Winbond W25Q64VSFIG) 64-Mb flash memory device and a flash programming header (J12). J12 supports a user-defined SPI mezzanine board. The SPI configuration source is selected via SPI select jumper J15. For details on configuring the FPGA, see “Configuration Options.”

TMS

TDI

TDO

Silkscreen

TCK

GND 3V3

J12

1FPGA_PROG_B

2FPGA_D2_MISO3

3FPGA_D1_MISO2

4SPI_CS_B

5FPGA_MOSI_CSI_B_MISO0

6FPGA_D0_DIN_MISO_MISO1

7FPGA_CCLK

8GND

9VCC3V3

HDR_1X9

UG518_06_070809

Figure 1-6:J12 SPI Flash Programming Header

18	www.xilinx.com	SP601 Hardware User Guide
		UG518 (v1.1) August 19, 2009

Image 18

Xilinx UG518 manual SPI x4 Flash, 6J12 SPI Flash Programming Header

Contents

SP601 Hardware User Guide UG518 v1.1 August 19, 2009 optional SP601 Hardware User Guide Revision History Date Version Revision SP601 Hardware User Guide Table of Contents UG518 v1.1 August 19 Guide Contents About This GuideAdditional Resources Conventions Online Document Preface About This GuideMeaning or Use Example SP601 Evaluation Board OverviewAdditional Information Features SP601 Evaluation Board Block Diagram Related Xilinx DocumentsRelated Xilinx Documents SP601 Features FeatureDetailed Description Detailed Description SP601 Features Cont’d NumberSpartan-6 XC6SLX16-2CSG324 Fpga 2I/O Voltage Rail of Fpga Banks MB DDR2 Component Memory Schematic Netname Memory U2 5DDR2 Component Memory ConnectionsName 3UCF Location Constraints for DDR2 Sdram Address Inputs 4UCF Location Constraints for DDR2 Sdram Data I/O Pins SPI x4 Flash 6J12 SPI Flash Programming Header Schematic Netname Pin # Linear Flash BPI 8UCF Location Constraints for BPI Flash Connections FLASHA6 10UCF Location Constraints for BPI Flash Connections 10/100/1000 Tri-Speed Ethernet PHY 8PHY Configuration PinsSchematic Netname U3 M88E111 Pin Bit2 Bit1 Bit0 Schematic Netname U3 M88E111 SP601 Evaluation Board 9PHY Connections Cont’d USB-to-UART Bridge CP2103GM Connections IIC Bus 13IIC Bus Topology Clock Generation 14UCF Location Constraints for IIC Connections Vita 57.1 FMC-LPC Connector 16UCF Location Constraints for Oscillator Socket Connections 13 LPC Pinout 13 LPC Pinout Cont’d 18UCF Location Constraints for Vita 57.1 FMC-LPC Connections Reference Signal Name Color Label Description Status LEDs Suspend Mode I/O Fpga Awake LED and Suspend Jumper Fpga Init and Done LEDs Controlled LED Reference Signal Name Color Label Fpga Pin User I/O User DIP switch Reference Signal Name Color Label Fpga Pin Designator User Pushbutton Switches Gpio Male Pin Header 27UCF Location Constraints for User and General-Purpose I/O AC Adapter and 5V Input Power Jack/Switch Power ManagementFpgaprogb Pushbutton Switch Onboard Power Supplies Power Management 22Estimated Current Draw Rail Estimated Current a Configuration Options Jtag Configuration Configuration Options 32VITA 57.1 FMC Jtag Bypass Jumper SP601 Evaluation Board References Appendix a References Default Jumper and Switch Settings Table B-1Default Jumper and Switch SettingsType/Function Default Appendix B Default Jumper and Switch Settings Vita 57.1 FMC Connections Table C-1VITA 57.1 FMC LPC ConnectionsLPC Pin FMCLA08N SP601 Master UCF Appendix D SP601 Master UCF SP601 Hardware User Guide NET Fpgacmpmosi NET Smaclkn