ARM Cortex-M3 DesignStart User Manual

3.5 External PSRAM
An external PSRAM is available in the FPGA platform.
A 16MB 16-bit PSRAM area is available and the memory map allocates the address-range 0x21000000 -
0x21FFFFFF. This PSRAM space enables large test programs to be used in the SRAM region of the
Cortex-M3 memory space.
Note
The internal bus structure is such that the accesses to the PSRAM and ZBT SSRAM take longer than the
accesses to the internal block RAM used for flash memory and SRAM regions. Therefore, any program
using the PSRAM for code or data accesses suffers a corresponding performance degradation.
3 FPGA platform overview
3.5 External PSRAM
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ARM Cortex-M3 DesignStart Specifications

General

Brand	ARM
Model	Cortex-M3 DesignStart
Category	Motherboard
Language	English