Rohde & Schwarz RTE Series - Configuring the CXPI Signals; Display Settings

Protocol analysis
R&S
®
RTE
881User Manual 1326.1032.02 ─ 20
Enable bit rate/ Average bit rate
If enabled, sets the number of transmitted bits per second. If disabled, the bit rate is
measured and the average bit rate in the acquisition window is displayed.
Remote command:
BUS<m>:CXPI:BITRate:ENABle on page 1873
BUS<m>:CXPI:BITRate:VALue on page 1873
BUS<m>:CXPI:RESult:BITRate? on page 1874
Expected IBS length
Sets a range for the expected inter-byte-space (IBS) length.
The standard has a permissible IBS length. Violation of these limits leads to decoding
ambiguities. To test different limits, you can set the expected IBS length value.
Remote command:
BUS<m>:CXPI:IBS:MAX on page 1875
BUS<m>:CXPI:IBS:MIN on page 1876
Expected IFS length
Sets a range for the inter-frame-space.
The standard has a permissible IFS length. Violation of these limits leads to decoding
ambiguities. To test different limits, you can set the expected IFS length value.
Remote command:
BUS<m>:CXPI:IFS:MAX on page 1876
BUS<m>:CXPI:IFS:MIN on page 1876
13.19.2.2 Display settings
Access: [PROTOCOL] > "Display" tab.
For common display settings, see Chapter 13.1.3, "Display", on page 515.
13.19.2.3 Configuring the CXPI signals
For configuration, assign the lines to the input channels and define the logical thresh-
olds and the hysteresis.
1. Press the [PROTOCOL] key on the front panel.
2. Select the tab of the bus you want to set up, for example "SB1".
3. Select the "Decode" tab.
4. Tap the "Protocol" button and select the protocol: "CXPI".
5. Optionally, you can enter a "Bus label" on the "Display" tab.
6. Tap the "Variant" button, and select the protocol.
7. Select the source and the polarity.
8. Enter the "Threshold" and the "Hysteresis".
CXPI (option R&S
RTE-K76)