Datasheet

Section 5 Interrupt Controller
Rev. 3.00 Sep. 28, 2009 Page 126 of 910
REJ09B0350-0300
5.7 Address Breaks
5.7.1 Features
With this LSI, it is possible to identify the prefetch of a specific address by the CPU and generate
an address break interrupt, using the ABRKCR and BAR registers. When an address break
interrupt is generated, address break interrupt exception handling is executed.
This function can be used to detect the beginning of execution of a bug location in the program,
and branch to a correction routine.
5.7.2 Block Diagram
Figure 5.11 shows a block diagram of the address break function.
BAR
Match
signal
ABRKCR
Comparator
Internal address
Prefetch signal
(internal signal)
Control logic
Address break
interrupt request
Figure 5.11 Block Diagram of Address Break Function