Rohde & Schwarz RTP Series - Page 909

Protocol analysis
R&S
®
RTP
909User Manual 1337.9952.02 ─ 12
Threshold
Sets the threshold value for the digitization of the DQ/DQS lane.
There are two ways to set the thresholds:
●
"Threshold"
Enter individual values for each line directly in the fields.
●
"Find thresholds"
Executes the measurement of reference levels and sets the thresholds to the mid-
dle reference level of the measured amplitude.
Remote command:
BUS<m>:DDR:DATA:THReshold on page 2170
BUS<m>:DDR:STRBe:THReshold on page 2171
BUS<m>:SETReflevels on page 1548
Hysteresis
Sets a value for the hysteresis of the respective lane.
Remote command:
BUS<m>:DDR:DATA:HYSTeresis on page 2169
BUS<m>:DDR:STRBe:HYSTeresis on page 2170
Bit rate (for eye diagram)
Declares the nominal bit rate of the data signal for the DDR eye diagram analysis.
See also, Bit rate, Range UI, Position UI.
Remote command:
BUS<m>:DDR:BITRate on page 2171
Show thresholds
If enabled, the threshold levels are displayed in the diagram.
Remote command:
BUS<m>:THReshold on page 1549
13.23.1.2 Display settings
Access: [Protocol] > "Display" tab.
For common display settings, see Chapter 13.1.3, "Display", on page 514.
To enhance the decode possibilities of the DDR protocol, you can use an additional
setting in the "Display" tab: "Decode layer".
DDR (option R&S RTP-K91/K93 )