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N8848A MIPI C-PHY Protocol Decode for Infiniium Series Oscilloscopes

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Key Features & Specifications

Key features

  • Set up your oscilloscope to show C-PHY protocol decode in less than a minute
  • Save time and eliminate errors by viewing packets at the protocol level
  • Use time-correlated views to quickly troubleshoot serial protocol problems

Compatible oscilloscopes

  • Infiniium 9000A or S-Series oscilloscope
  • Infiniium 90000A, V-Series, 90000X, Z-Series oscilloscope
  • Infiniium 6.10 or higher software-operated oscilloscope

Requirements

  • Windows 7 or above operating system
  • Infiniium 6.10 or higher software revision
  • 3 high-bandwidth active probes

Description

C-PHY is a MIPI physical layer (PHY) standard that provides high-throughput performance over bandwidth-limited channels to connect displays and cameras to an application processor. The standard provides a PHY for both MIPI Alliance’s Camera Serial Interface (CSI-2) and Display Interface (DSI-2) specifications. This enables engineers to scale their implementations to support a wide range of higher resolution image sensors and displays, while keeping power consumption low. However, because the C-PHY supports two application layers, engineers implementing a C-PHY interface must be able to see a device’s signal integrity and protocol data to ensure it conforms to the MIPI specification.

With C-PHY, seven consecutive symbols are used to transmit 16 bits of data over a minimum of 3 wires (one lane), after encoding. Troubleshooting C-PHY-based applications can therefore, be time-consuming and error-prone because the engineer has to manually scroll through the waveform looking for regions of interest.

Keysight’s N8848A MIPI C-PHY protocol decoder software extends the capability of Infiniium oscilloscopes, minimizing the time required for debugging and testing designs with CSI-2 and DSI-2 interfaces.

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