Renesas IECUBE2 User Manual page 11

QB-V850E2
(1) Hardware break function
The hardware break function is used to observe the CPU bus cycles and set a break for a specific
fetch or access operation. For example, a break can be set by detecting a state where an address
has been executed or a variable has been accessed. For states that can be set, see 1.3.6 Event
function (specific CPU operation detection).
Caution The address for which a break has been set is at a position ahead of the address
where an actual access has occurred, because the break set for the access (write,
read) is detected at an MEM stage or a WB stage on the CPU pipeline.
(2) Software break function
The software break function is used to set a break when a specific address has been executed
(fetched).
(3) Timer overflow break function
This function is used to set a break when a time set by using the time measurement function
(1.3.5 Time measurement function) has elapsed. For example, if the execution time of a function
must be 2 ms, a break can be set when at least 2 ms have elapsed between starting and ending the
function. This function and the trace function
used together to find the source that has taken time.
(4) Forced break function
This function is used to forcibly stop a program when it is desired to be stopped.
(5) Trace full break function
This function is used to stop a program when the trace memory is full.
R20UT0824EJ0101 Rev.1.01
2013.01.08
(1.3.4 Trace function (program execution history))
1.GENERAL
can be
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