User manual

Triggers
R&S
®
RTO
76User Manual 1316.0827.02 ─ 06
Clock level
Sets the voltage level for the clock signal.
SCPI command:
TRIGger<m>:SPATtern:CSOurce:LEVel on page 478
Data level
Sets the voltage level for the data signal.
If the signal value is higher than the data level, the state is 1. Below the level, the signal
state is 0.
SCPI command:
TRIGger<m>:LEVel<n>[:VALue] on page 455
Couple levels (Trigger level and hysteresis coupling)
Sets the trigger levels and hysteresis values for all channels to the values of the currently
selected trigger source. The function affects only the levels defined for the selected event
(A-, B-, or R-event). The hysteresis of the external trigger input is an independent value,
and it is not affected by level coupling.
In trigger sequences, event coupling of trigger levels is possible: "Couple levels of all
events" on page 82
SCPI command:
TRIGger<m>:SCOupling on page 456
Pattern
The pattern contains the bits of the serial data to be found in the data stream. The max-
imum length of the pattern is 128 bit. Touch and hold the "Pattern" field to open the "Bit
Pattern Editor" where you can enter the pattern in various formats.
See also: chapter 10.1.4, "Bit Pattern Editor", on page 255.
In binary format, an X indicates that the logical level for the bit is not relevant (don't care).
SCPI command:
TRIGger<m>:SPATtern:PATTern on page 478
3.3.1.13 Triggering on Serial Buses
Protocol analysis including configuration, triggering, and decoding is described in chap-
ter 10, "Protocol Analysis", on page 250
For information on triggering on serial buses, see:
● chapter 10.2.3.2, "I²C Trigger", on page 261
● chapter 10.3.3.2, "SPI Trigger", on page 273
● chapter 10.4.2.2, "UART Trigger", on page 282
● chapter 10.6.2.2, "LIN Trigger", on page 299
● chapter 10.5.1.2, "CAN Trigger", on page 288
Reference for Triggers