Technical information

26
• Trace acquisition condition
Do not set the trace end condition for the sleep instruction and the branch instruction according
to which the delay slot becomes the sleep instruction.
When [I-Bus, L-Bus & Branch] is selected and the trace acquisition condition is set for the L-
bus and I-bus with Event Condition, set the L-bus condition and the I-bus condition for [Event
Condition 1] and [Event Condition 2], respectively.
If the settings of [I-Trace mode] are changed during execution of the program, execution will
be suspended. (The number of clocks to be suspended during execution of the program is a
maximum of about 26 bus clocks (Bφ). If the bus clock (Bφ) is 10.0 MHz, the program will be
suspended for 2.6 μs.)
Do not use the data condition as the trace acquisition condition.
• Displaying a trace
If a trace is displayed during execution of the program, execution will be suspended to acquire
the trace information. (The number of clocks to be suspended during execution of the program
is a maximum of about 16384 peripheral clocks (Pφ) + 12310 bus clocks (Bφ). If the peripheral
clock (Pφ) is 10.0 MHz and the bus clock (Bφ) is 10.0 MHz, the program will be suspended for
2.87 ms.)
If a break occurs with the Event Condition, when one or two instructions have been executed
after a break occurred in an instruction and there is an unconditional branch, a trace result will
be displayed even if the unconditional branch has not been executed.
The trace acquisition result of the DMA or DTC transfer may not be displayed correctly. In
such a case, a master where the trace has been generated or a line for displaying the trace will
be blank.
• Restarting trace acquisition after halting
Restarting trace acquisition is disabled during execution of the user program; a break must be
generated.
• Note on execution of the user program
Do not change trace settings during execution of the user program; trace acquisition may be
disabled. The following trace settings will be changed: the conditions of Event Condition, the
sequential conditions satisfied by Event Condition, and internal trace set in the [Acquisition]
dialog box. To change these settings, a break must be generated.