Outline Of The Memory Patch Function - Fujitsu MB96300 series Hardware Manual

F2mc-16fx 16-bit

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CHAPTER 31 MEMORY PATCH FUNCTION

MB96300 Super Series Hardware Manual

Outline of the Memory Patch Function

The Memory Patch Function can detect addresses for code fetch or data access on the

16FX core bus. If the address matches the value set in a patch function address register,

the code or data read is replaced with the value given by the according data patch

This data replacement function can be used to insert a software interrupt/break point,

branch instruction or to patch the code or data words directly. Consequently, the CPU

executes the instruction or reads the data speciﬁed in the patch register instead of the

value addressed in the memory.

The hardware interrupt can be used to implement a data break point.