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Protocol Decoding
TIP
•
When you adjust the horizontal time base, the waveform displayed on the screen will also
change, and the total number of lines containing the decoding information in the event
table will also be changed.
•
The displayed decoded data information in the bus is related to the value of the
horizontal time base. Reducing the horizontal time base can help you view the detailed
information.
Set the Event Table Format
In the Decode menu, click or tap the drop-down button of Format to select the
display format of "Data" in the event table. The available options include "Hex",
"Dec", "Bin", or "ASCII".
Interpret the Decoded 1553B Data
•
C/S: command/status word. It is expressed in "C/S" form.
•
RTA: remote terminal address of the command/status word. It is expressed in
"RTA:" form.
•
C/S data: the rest data value of the command/status word. Its display format is
the same as that of the bus data (Hex, Dec, Bin, or ASCII), displayed as "C/S:".
•
Parity bit: displayed as a yellow-green patch; when errors occur, displayed as a
red patch.
HDO4000 User Guide
224
Figure 15.25 1553B Decoding Event Table
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