
4. INTERFACE BETWEEN NC AND PMC
B–63505EN/02
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Every time a specified signal changes, the signal status is memorized in
the trace memory. This function is useful for identifying intermittent
troubles.
1 Trace parameter screen
PMC SIGNAL TRACE
T.DISP
EXEC
MONIT RUN
Changes to a trace memory display screen (Screen on
the next page)
TRACE MODE :
(0:1BYTE/1:2BYTE/2:WORD)
1STTRACE ADDRESS CONDITION
ADDRESS TYPE : (0:PMC/1:PHY)
ADDRESS :
MASK DATA :
2NDTRACE ADDRESS CONDITION
ADDRESS TYPE : (0:PMC/1:PHY)
ADDRESS :
MASK DATA :
Select each item by cursor keys
a. TRACE MODE: Select the trace mode
0=Records changes of 1–byte signals
1=Records changes of independent 2–byte signals
2=Records changes of consecutive 2–byte signals
b. ADDRESS TYPE:
0=PMC address is used for tracing address.
1=Physical address is used for tracing address.
(Mainly used for C–language program)
c. ADDRESS:Set a tracing address.
d. MASK DATA: The bits to be traced are specified by a hexadecimal
number (2 digits).
For example, to trace the signals at bit 7,6,5 and 0, set E1
(hexadecimal) to MASK DATA.
#7 #6 #5 #4 #3 #2 #1 #0
E1⇒ 1 1 1 0 0 0 0 1
However, even if bit 4,3,2 and 1 changes, tracing (memory
registration) cannot be done but signal status is memorized when a
tracing is executed.
[Correspondence of binary and hexadecimal number]
0000
2
: 0
16
0001
2
: 1
16
0010
2
: 2
16
0011
2
: 3
16
0100
2
: 4
16
0101
2
: 5
16
0110
2
: 6
16
0111
2
: 7
16
1000
2
: 8
16
1001
2
: 9
16
1010
2
: A
16
1011
2
: B
16
1100
2
: C
16
1101
2
: D
16
1110
2
: E
16
1111
2
: F
16
D TRACE screen