MIPI® RF Front-End Control Interface (RFFESM) Protocol Triggering and Decode

MIPI RFFE

The MIPI Alliance Specification for RF Front-End Control Interface (RFFE) was developed to offer a common and widespread method for controlling RF front-end devices. Since this protocol transfers bits serially, using a traditional oscilloscope has limitations. Manually converting captured 1’s and 0’s to protocol requires significant effort, cannot be done in short time, and includes potential for human error. In addition, traditional scope triggers are not sufficient for specifying protocol-level conditions.

Extend your oscilloscope capability with the Keysight Technologies, Inc. MIPI RFFE triggering and decode application. This application makes it easy to debug and test designs that include MIPI RFFE buses using your Infiniium series oscilloscope.

-Set up your oscilloscope to show MIPI RFFE protocol decode in less than 30 seconds.

-Get access to a rich set of integrated protocol-level triggers.

-Save time and eliminate errors by viewing packets at the protocol level.

-Use time-correlated views to quickly troubleshoot serial protocol problems back to their timing or signal integrity root cause.

The following are MIPI RFFE protocol decode features the application will support.

-Supports the MIPI RFFE specification v1.10, v2.0 and v2.1 decode and trigger

-Decodes traffic between multiple masters and slaves

-Parity check on traffic to ensure data accuracy

-Supports search capability for various frames, sequences and errors

Easy to find

Turn decode on/off via the “Serial Decode” button or in the “Setup” menu of 9000A and S-Series oscilloscopes. View decode embedded on the waveform display or in the protocol viewer listing window. (See pages 4 to 5.)

Support for live and saved waveforms

Perform and view decode information on both live and saved waveforms. Decode up to any combination of four live or saved waveforms.

30-Second RFFE setup

Configure your oscilloscope to display protocol decode in less than 30 seconds. Use “Auto Setup” to automatically configure sample rate, memory depth, threshold and trigger levels.

MIPI RFFE Setup, Protocol Triggering, and Search Capabilities

Get access to a rich set of integrated protocol-level triggers. The application includes a suite of configurable protocol-level trigger conditions specific to MIPI RFFE. When serial triggering is selected, the application uses software-based triggering.

With software-based protocol triggering, the oscilloscope takes signals acquired using either an oscilloscopes or digital channels and reconstructs protocol frames after each acquisition. It then inspects these protocol frames against specified protocol-level trigger conditions and triggers when the condition is met.

MIPI RFFE Protocol Decode

Quickly move between physical and MIPI RFFE protocol layer information using the time-correlated tracing marker. Display protocol content using embedded decode in the waveform area, or see protocol events in a compact listing format. Minor tick marks indicate clock transitions. Major tick marks indicate segments of the serial packet MIPI RFFE measurements and are automatically time-correlated with measurements on other oscilloscope channels.

Compact protocol using the full screen listing.

The protocol viewer window shows the index number, time stamp value identifier, packet type, and data values for each MIPI RFFE packet. Data in the listing window can be saved to a .csv or .txt file for offline viewing.