1.6.4. One wait state flash, registered fetch interface (ICODE)

If the ICODE interface must be registered, you can reduce the cost of mispredictions to just the slave side of the prefetch controller. The core still loses the opportunity of the fetch queue request on the ICODE interface, as in the zero wait state case. However, the trailing registered BRCHSTAT[3] status of the conditional execution can mask the external mispredict on the output of the controller's registered system interface, appearing as an idle cycle.

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