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SP305 Spartan-3 Development Platform User Guide
www.xilinx.com
UG216 (v1.1) March 3, 2006
SP305 Spartan-3 Development Platform User Guide
R
Linear Flash Memory Chips (3
8
)
Two 32Mb linear flash memory chips (Micron MT28F320J3RG-11 ET) are installed on the
board for a total of 8MB of flash memory. These flash memory chips are Intel StrataFlash
compatible. This memory provides non-volatile storage of data or Embedded Processor
software. Each flash chip is 16 bits wide and together forms a 32-bit data bus that is shared
with SRAM.
The reset for the AC97 Codec is shared with the reset signal for the flash memory chips and
is designed to be asserted at power-on or upon system reset.
Note:
The SRAM and FLASH memory share the same data bus.
SRAM_BW0
AF16
SRAM_BW1
AE16
SRAM_BW2
AA15
SRAM_BW3
W15
SRAM_AVD_LD_N
W12
SRAM_CE1_N
AC11
SRAM_FLASH_WE_N
W11
SRAM_OE_N
AF10
SRAM_ZZ
AE10
SRAM_MODE
AD10
SRAM_DQP0
AF5
SRAM_DQP1
AE5
SRAM_DQP2
AD5
SRAM_DQP3
AB6
SRAM_CLK
AF13
SRAM_CLK
AF14
FEEDBACK
Table 2-29:
SRAM
(Continued)
Label
FPGA Pin
Description
Table 2-30:
Flash
Label
FPGA Pin
Description
SRAM_FLASH_D0
AD25
SRAM_FLASH_D1
AB22
SRAM_FLASH_D2
AC22
SRAM_FLASH_D3
AE24
SRAM_FLASH_D4
AF24