Protocol analysis
R&S
®
RTO6
971
User Manual 1801.6687.02 ─ 05
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SEARch:RESult:DDR:FRAMe<m>:TYPE?
13.27.2.3
Searching for DDR data
Prerequisite: A serial bus is configured for the DDR signal to be decoded and ana-
lyzed.
The search for events is set up in the following way:
1. Press the [Bus] key and select the "Shortcuts" tab.
2. Tap "Setup search".
3. If the dialog box does not contain a search entry, tap the "Add" icon to create one,
as described in
"To create a user-defined search"
4. Tap "Source" and select the serial bus that is set to DDR (e.g. "SB1", unless
already selected).
The search dialog for DDR protocol analysis is opened.
5. Specify search criteria according to
Chapter 13.27.2.1, "DDR search setup"
6. To acquire a waveform, press [Single].
The R&S
RTO6 performs a DDR decode according to the thresholds and protocol
settings of the associated serial bus source (here in our example SB1).
7. To start searching the acquired waveform for specific events, tap "Enable" in the
search setup dialog:
The R&S
RTO6 displays the "Search Results" box that lists the detected events.
For information on how to configure the search results presentation and how to navi-
gate the search results, see also
"To display search zoom windows"
13.27.3
DDR decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1.
In the "Protocol" dialog > "Setup" tab, enable "Decode".
2.
In the "Protocol" dialog > "Display" tab, select additional result display settings:
"Show decode table" and "Show binary signals".
For a description of the display settings, see also
The instrument captures and decodes the signal according to the standard definition
and the configuration settings.
The color-coding of the various protocol sections and errors simplifies the interpretation
of the visual display. The decode information condenses or expands, depending on the
horizontal scale. Various data formats are available to show the result values.
DDR (option R&S
RTO6-K91 )
