Chapter 11: Parallel Nor Flash Prom - Xilinx Spartan-3A User Manual

R
Parallel NOR Flash PROM
As shown in
(4 Mbyte) parallel NOR Flash PROM.
The parallel NOR Flash PROM provides various functions:
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Spartan-3A/3AN Starter Kit Board User Guide
UG334 (v1.0) May 28, 2007
Figure 11-1, the Spartan-3A/3AN Starter Kit board includes a 32 Mbit
FPGA
LDC0
LDC1
HDC
LDC2
User-I/O
User-I/O
User-I/O
User-I/O
D [7:1]
D[0]
A[21:1]
A[0]
A[25:22]
Figure 11-1: Connections to 32 Mbit Parallel NOR Flash Memory
Stores a single FPGA configuration in the Flash memory.
Stores various, different FPGA configurations in the Flash memory and dynamically
switches between the various images using the FPGA's MultiBoot feature.
Stores and executes MicroBlaze processor code directly from the Flash memory.
Stores MicroBlaze processor code in the Flash memory and shadows the code into the
DDR2 SDRAM memory before executing the code.
Stores non-volatile user data from the FPGA application.
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STMicro
M29DW323DT
NF_CE
E
NF_OE
G
NF_WE
W
NF_BYTE
BYTE
NF_STS
RB
NF_RP
RP
NF_WP
WP
NF_D<14:8>
DQ[14:8]
NF_D<7:1>
DQ[7:1]
SPI_MISO
DQ[0]
NF_A<21:1>
A[20:0]
NF_A<0>
D15/A-1
Chapter 11
32 Mbit
UG334_c11_01_052407
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