13.2.6.4 Flash Patch Breakpoint (FPB)

The Flash Patch Breakpoint (FPB):

  • implements hardware breakpoints
  • patches code and data from code space to system space

The FPB unit contains:

  • two literal comparators for matching against literal loads from Code space, and remapping to a corresponding area in System space
  • six instruction comparators for matching against instruction fetches from Code space and remapping to a corresponding area in System space

Alternatively, comparators can also be configured to generate a breakpoint instruction to the processor core on a match