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Keysight InfiniiVision 3000T X-Series Oscilloscopes 
User's Guide
 
8 Serial Decode
Serial Decode Options / 149
Lister / 151
Searching Lister Data / 152
Triggering on
Serial Data
In some cases, such as when triggering on a slow serial signal (for example, I2C, 
SPI, CAN, LIN, etc.) it may be necessary to switch from the Auto trigger mode to 
the Normal trigger mode to prevent the oscilloscope from Auto-triggering and 
stabilize the display. You can select the trigger mode by pressing the 
[Mode/Coupling] key, then the Mode softkey.
Also, the threshold voltage level must be set appropriately for each source 
channel. The threshold level for each serial signal can be set in the Signals Menu. 
Press the [Serial] key, then the Signals softkey.
Serial Decode Options
Keysight's hardware-accelerated serial decode options can be installed when the 
oscilloscope is manufactured, or added later. The following serial decode licenses 
are available:
Serial Decode License See:
DSOXT3AUTO — you can decode CAN (Controller 
Area Network) and LIN (Local Interconnect 
Network) serial buses.
• “CAN/CAN FD Serial Decode" on 
page 402.
• “LIN Serial Decode" on page 411.