4 Performance

The QSPI allows the system to use high-performance serial Flash memories which are small and inexpensive, in place of larger and more expensive parallel Flash memories. Therefore, the performance of the QSPI plays an important role. The performance of the QSPI is bounded by the QSPI speed, Flash capabilities and other criteria.

Note: Refer to the application note “SAMA5D2 Quad SPI (QSPI) Performance” given in 6 References. Performance numbers in the document may vary with respect to compiler settings and optimization levels.