213
TRSM(45)
00000
AR
1814
AR 1813 ON when tracing
00200
00201
AR 1812 ON when trace is complete
Starts data tracing.
Designates point for
tracing.
Indicates that tracing has
been completed.
Address
Instruction
Operands
Address
Instruction
Operands
00000
LD
0000
00001
OUT
AR
1814
00002
TRSM(45)
00003
LD
AR
1813
00004
OUT
00200
00005
LD
AR
1812
00006
OUT
00201
Example
The following shows the basic program and operation for data tracing. Refer
to the GPC, FIT, or LSS
Operation Manual
for details. The Sampling Start Bit
starts the sampling. The data is read and stored into trace memory. When the
Trace Start Bit is received, the CPU looks at the delay and marks the trace
memory accordingly. This can mean that some of the samples already made
will be recorded as the trace memory (negative delay), or that more samples
will be made before they are recorded (positive delay). The sampled data is
written to trace memory, jumping to the beginning of the memory area once
the end has been reached and continuing up to the start marker. This might
mean that previously recorded data (i.e., data from this sample that falls be-
fore the start marker) is overwritten (this is especially true if the delay is posi-
tive). The negative delay cannot be such that the required data was executed
before sampling was started.
TRSM(45)
00000
AR
1814
AR 1813 ON when tracing
00200
00201
AR 1812 ON when trace is complete
Starts data tracing.
Designates point for
tracing.
Indicates that tracing has
been completed.
Address
Instruction
Operands
Address
Instruction
Operands
00000
LD
0000
00001
OUT
AR
1814
00002
TRSM(45)
00003
LD
AR
1813
00004
OUT
00200
00005
LD
AR
1812
00006
OUT
00201
Data Tracing (TRACE MEMORY SAMPLING – TRSM(45))
Section 5-24
