Xilinx MIcroblaze Development Spartan-3E 1600E - Manual (Page 85)

MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide 83
UG257 (v1.1) December 5, 2007 www.xilinx.com
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Chapter 11
Intel StrataFlash Parallel NOR Flash
PROM
As shown in Figure 11-1 , the MicroBlaze Development Kit boards includes a 128 Mbit (16
Mbyte) Intel StrataFlash parallel NOR Flash PROM. As indicated, some of the StrataFlash
connections are shared with other components on the board.
The StrataFlash PROM provides various functions:
x
Stores a single FPGA configuration in the StrataFlash device.
x Stores two different FPGA configurations in the StrataFlash device and dynamically
switch between the two using the Spartan-3E FPGA’s MultiBoot feature.
x Stores and executes MicroBlaze processor code directly from the StrataFlash device.
Figure 11-1: Connections to Intel StrataFlash Flash Memory
CE2
CE1
CE0
OE#
WE#
BYTE#
D[15:8]
A[24:20]
A[19:0]
STS
D[0]
LDC0
LDC1
HDC
LDC2
User I/O
User I/O
D[0]
User I/O
A[19:0]
A[23:20]
Spartan-3E FPGA
Intel StrataFlash
CoolRunner-II
CPLD
SPI Serial Flash
Q
ADC
SDO
DAC
SDO
Platform Flash
D0
LCD Header
DB[7:0]
[15:8]
SF_CE0
SF_OE
SF_WE
SF_BYTE
SF_STS
SF_D<15:8>
SPI_MISO
SF_A<24:20>
SF_A<19:0>
D[7:1] D[7:1]
SF_D<7:1>
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