Overview Of Address Match Detection Function - Fujitsu MB90480 Series Hardware Manual

CHAPTER 21 ADDRESS MATCH DETECTION FUNCTION

21.1 Overview of Address Match Detection Function

If the address of the instruction to be processed next to the instruction currently
processed by the program matches the address set in the program address detection
registers, the address match detection function forcibly replaces the next instruction
to be processed by the program with the INT9 instruction to branch to the interrupt
processing program. Since the address match detection function can use the INT9
interrupt, the program can be corrected by patch processing.
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Overview of Address Match Detection Function
• There are two program address detection registers (PADR0 and PADR1), each of which has
an interrupt enable bit. The generation of an interrupt due to a match between the address
held in the address latch and the address set in the detection address setting registers can
be enabled and disabled for each register.
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