Address Breaks; Features; Block Diagram; Figure 5.12 Block Diagram Of Address Break Function - Renesas H8S Series Hardware Manual

Section 5 Interrupt Controller
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 5.12 shows a block diagram of the address break function.
Internal address
Prefetch signal
(internal signal)

Figure 5.12 Block Diagram of Address Break Function

Rev. 3.00 Jul. 14, 2005 Page 122 of 986
REJ09B0098-0300
BAR
Match
signal
Comparator
ABRKCR
Control logic
Address break
interrupt request