Motorola MPC533 Reference Manual page 891

• Less than or equal of the maximum positive number when in signed mode (0111...1)
• Greater than or equal of the maximum negative number when in signed mode
(1000...)
These boundary cases need no special support because they all mean 'always true' and can
be programmed using the ignore option of the load/store watchpoint programming (refer to
Section 21.2, "Watchpoints and Breakpoints Support").
21.2.2 Instruction Support
There are four instruction address comparators A,B,C, and D. Each is 30 bits long,
generating two output signals: equal and less than. These signals are used to generate one
of the following four events: equal, not equal, greater than, less than.
The instruction watchpoints and breakpoint are generated using these events and according
to user programming. Note that using the OR option enables "out of range" detect.
Table 21-9. Instruction Watchpoints Programming Options
Name
IWP0
IWP1
IWP2
IWP3
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Description
First instruction watchpoint
Second instruction watchpoint
Third instruction watchpoint
Fourth instruction watchpoint
Chapter 21. Development Support
Watchpoints and Breakpoints Support
Programming Options
Comparator A
Comparators (A&B)
Comparator B
Comparator (A | B)
Comparator C
Comparators (C&D)
Comparator D
Comparator (C | D)
21-21