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SP305 Spartan-3 Development Platform User Guide
Table 2-29: SRAM (Continued)
Linear Flash Memory Chips (38)
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:
Table 2-30: Flash
32
Label
SRAM_BW0
SRAM_BW1
SRAM_BW2
SRAM_BW3
SRAM_AVD_LD_N
SRAM_CE1_N
SRAM_FLASH_WE_N
SRAM_OE_N
SRAM_ZZ
SRAM_MODE
SRAM_DQP0
SRAM_DQP1
SRAM_DQP2
SRAM_DQP3
SRAM_CLK
SRAM_CLK
The SRAM and FLASH memory share the same data bus.
Label
SRAM_FLASH_D0
SRAM_FLASH_D1
SRAM_FLASH_D2
SRAM_FLASH_D3
SRAM_FLASH_D4
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FPGA Pin
AF16
AE16
AA15
W15
W12
AC11
W11
AF10
AE10
AD10
AF5
AE5
AD5
AB6
AF13
AF14
FPGA Pin
AD25
AB22
AC22
AE24
AF24
SP305 Spartan-3 Development Platform User Guide
Description
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UG216 (v1.1) March 3, 2006
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