About The Prefetch Unit; Chapter 5 Prefetch Unit - ARM Cortex r1p3 Technical Reference Manual

Chapter 5
Prefetch Unit
This chapter describes how the PreFetch Unit (PFU), in conjunction with the DPU, uses program
flow prediction to locate branches in the instruction stream and the strategies used to determine if
a branch is likely to be taken or not. It contains the following sections:
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•
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ARM DDI 0363E
ID013010
About the prefetch unit on page 5-2
Branch prediction on page 5-3
Return stack on page 5-5.
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5-1