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Operating Basics
8
Serial Mask Testing & Serial Pattern Trigger User Manual
Accessing Serial Pattern Trigger Functions
To access the Serial Pattern Trigger functions, do the following steps:
1. Touch the Trig tool bar button. The instrument displays the Trigger control
window.
2. Select the A Event tab.
3. Touch Serial in the Trigger Type field. The instrument displays the serial
pattern trigger functions, as shown in Figure 4.
Figure 4:
Serial pattern trigger control window
Table 3 describes the Serial Pattern Trigger functions. Refer to the Reference
chapter beginning on page 11 of this manual, as well as the online help, for more
information about these functions.
Table 3: Serial trigger functions
Menu Function
Data Src Sets the serial trigger waveform data source (Ch1-Ch4)
Clk Src Sets the serial trigger clock source (Ch1-Ch4, Recovered Clock); the recovered clock function is not
available on the TDS7104 or the TDS7054, and is only available for NRZ coded signals on the TDS6000
and TDS7000 Series instruments
Clk Polarity Sets the source waveform polarity (positive or negative); this function is available only when Clk Src is set
to a different value than Data Src
Coding Shows the serial trigger communications code type, which is always NRZ
Standard Sets the serial trigger signal standard
Bit Rate Sets or displays the bit rate for the selected standard
Data Level
Clk Level Sets the data and clock source threshold levels for the selected code