Rohde & Schwarz RTx-K76 CXPI digital oscilloscopes

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The Rohde & Schwarz RTx-K76 CXPI digital oscilloscopes allow users to analyse the clock extension peripheral interface (CXPI). Users can decode all protocol details and isolate anomalies by triggering on the corresponding details. This accelerates design verification and implementation of CXPI interfaces.

The product was standardised under SAE J3076 as a communications bus for diverse automotive applications. It uses pulse width modulation to transmit data over a single wire at 20 Kbps. The characters used are based on UART.

When debugging CXPI interfaces during development, users can trigger on conditions such as start of frame, frame ID, data values and various error conditions. The instrument’s search and navigation functions make it easy to detect relevant events in the data stream.

The oscilloscope displays decoded telegrams as colour-coded bus signals in a waveform diagram or as a table. As a result, developers can verify the quality of their products early during development.

The product allows users to simultaneously decode up to four serial buses from analog or logic signals. The oscilloscopes also deliver eye diagram mask tests using the standard mask test functionality.