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6.2.1. Micro TLB

The first level of caching for the page table information is a micro TLB of 32 entries on the data side, and configurable 32 or 64 entries on the instruction side. These blocks provide a fully associative lookup of the virtual addresses in a single CLK signal cycle.

The micro TLB returns the physical address to the cache for the address comparison, and also checks the protection attributes to signal either a Prefetch Abort or a Data Abort.

All main TLB related operations affect both the instruction and data micro TLBs, causing them to be flushed. In the same way, any change of the Context ID Register causes the micro TLBs to be flushed.