Triggers
R&S
®
RTP
261User Manual 1337.9952.02 ─ 12
6.10.2.3 Complex word pattern
Within the pattern type "Complex word pattern", a total of four different pattern condi-
tions can be triggered on within a data stream. First, aligning to a frame id in form of bit
pattern (or timeout) has to be done.
Example:
Figure 6-7 shows a sample configuration of a complex word pattern.
Figure 6-7: Example for complex word serial trigger pattern settings
The number of bits to search for a pattern condition is the multiplication of the parame-
ters "Pattern length" and "Search range". The starting point for the search of the pat-
tern condition is the "Bit offset", which is the number of arbitrary bits between the first
bit after the frame id and the first bit of the first pattern condition to be triggered on.
Figure 6-8: Example data stream of a complex word serial pattern trigger
The pattern conditions are searched word by word. Hence, there are only three possi-
ble start bits – bit 16, bit 24 and bit 32 – in the data stream for which the trigger condi-
tion (equal 0x42) is fulfilled. The trigger condition is not satisfied if the bit pattern
appears from bit 20 to bit 27.
Frame Id
Defines the condition for alignment before triggering on a word pattern.
Type ← Frame Id
Selects if the alignment is done on a pattern value or on a defined timeout.
Remote command:
TRIGger<m>:SERPattern:COMPlex:SOFState on page 1284
High-speed serial pattern trigger (Option R&S
RTP-K140/K141)
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