Cortex - R 4 A comparison with the ARM 9 E processor family

The Cortex-R4 processor builds on this foundation, by increasing performance while keeping system costs low. This is achieved through a variety of new technologies and design improvements which increase the computing efficiency of the processor. By providing a number of synthesis time configuration options, the Cortex-R4 is able to address applications previously covered by the ARM946E-S, ARM966E-S and ARM968E-S processors, and expand this applicability into more demanding situations. This white paper will examine the key differences between the ARM9E processor family and the Cortex-R4 processor.