4. INTERFACE BETWEEN NC AND PMC
2 Trace memory contents display screen
PMC SIGNAL TRACE
I mark : 1
* mark : 0
a. Soft key [TRCPRM]:Return to the trace parameter setting screen
(screen of previous page)
b. Soft key [EXEC]: Starts tracing.
Trace memory is cleared and each time a
specified signal changes, its status is recorded.
Trace memory is 256 bytes and if tracing is
executed 128 times by 2–byte tracing, tracing
is executed again from the head of memory.
c. Soft key [STOP]: Ends the tracing.
1 When the [EXEC] key is pressed again, the previous trace
results are cleared. Unless the trace parameters are set
correctly, tracing is not performed.
Also when a signal is being sampled by the signal waveform
display function, tracing is not performed.
2 The latest 256 bytes of trace results are stored regardless
of the time. (The trace results are cleared when power is
3 The range R9000 to R9007 cannot be traced.
4 During tracing, a signal is sampled at intervals of 8 ms.
Therefore, a signal change for less than 8 ms cannot be
5 When ADDRESS TYPE is set so that a physical address is
used as the tracing address, specify a memory address
used. If a memory address not used is specified for tracing,
a system error may occur.
*The tracing parameters are held even if the power is turned off.
K017 (SB5) or K900 (SB6)
#6 #5 #4 #3 #2 #1 #0
#5 0 : Tracing starts by [EXEC].
1 : Tracing starts automatically after power on