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Xilinx UG230 Spartan-3E FPGA Starter Kit Board User Guide

Xilinx UG230 Spartan-3E FPGA Starter Kit Board User Guide

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R<br />

Chapter 11<br />

Intel StrataFlash Parallel NOR Flash<br />

PROM<br />

As shown in Figure 11-1, the <strong>Spartan</strong> ® -<strong>3E</strong> <strong>FPGA</strong> <strong>Starter</strong> <strong>Kit</strong> boards includes a 128 Mbit (16<br />

Mbyte) Intel StrataFlash parallel NOR Flash PROM. As indicated, some of the StrataFlash<br />

connections are shared with other components on the board.<br />

<strong>Spartan</strong>-<strong>3E</strong> <strong>FPGA</strong><br />

CE2<br />

CE1<br />

LDC0<br />

SF_CE0<br />

CE0<br />

LDC1<br />

SF_OE<br />

OE#<br />

HDC<br />

SF_WE<br />

WE#<br />

LDC2<br />

SF_BYTE<br />

BYTE#<br />

<strong>User</strong> I/O<br />

SF_STS<br />

STS<br />

<strong>User</strong> I/O<br />

SF_D<br />

D[15:12]<br />

<strong>User</strong> I/O<br />

SF_D<br />

D[11:8]<br />

D[7:1]<br />

SF_D<br />

D[7:1]<br />

D[0]<br />

SPI_MISO<br />

D[0]<br />

<strong>User</strong> I/O<br />

SF_A<br />

A[24:20]<br />

A[19:0]<br />

SF_A<br />

A[19:0]<br />

A[23:20]<br />

CoolRunner-II CPLD<br />

Intel StrataFlash<br />

Character LCD<br />

DB[7:4]<br />

SPI Serial Flash<br />

Figure 11-1: Connections to Intel StrataFlash Flash Memory<br />

The StrataFlash PROM provides various functions:<br />

Stores a single <strong>FPGA</strong> configuration in the StrataFlash device.<br />

Stores two different <strong>FPGA</strong> configurations in the StrataFlash device and dynamically<br />

switch between the two using the <strong>Spartan</strong>-<strong>3E</strong> <strong>FPGA</strong>’s MultiBoot feature.<br />

Stores and executes MicroBlaze processor code directly from the StrataFlash device.<br />

<strong>Spartan</strong>-<strong>3E</strong> <strong>FPGA</strong> <strong>Starter</strong> <strong>Kit</strong> <strong>Board</strong> <strong>User</strong> <strong>Guide</strong> www.xilinx.com 83<br />

<strong>UG230</strong> (v1.2) January 20, 2011<br />

[7:4]<br />

ADC<br />

DAC<br />

Q<br />

SDO<br />

SDO<br />

Platform Flash<br />

D0<br />

<strong>UG230</strong>_c11_01_030206

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