Rohde & Schwarz team with Marvell for automotive Ethernet switch test

Test and measurement company, Rohde & Schwarz has partnered with semiconductor manufacturer, Marvell to demonstrate compliance tests and debugging for high-speed digital interfaces on the 88Q6113 multi-gigabit automotive switch platform.

A domain or zonal controller architecture simplifies vehicle network design and maximises performance. A domain controller can potentially replace the functions of many electronic control units (ECUs) providing capabilities for high-speed communications, sensor fusion and decision-making, as well as supporting high speed interfaces for cameras, radar and lidar.

Marvell’s 88Q6113 implements a domain or zonal controller network architecture and is compliant with the IEEE 802.3 automotive standard. It delivers high-bandwidth with advanced routing and security, says the company. The 11-port Ethernet switch supports RGMII/ MII/RMII/, SGMII, XFI Multi-Speed SerDes (1/2.5/5/10Gbits per second) and PCIe Gen 3.0 to integrate the full range of sensors required for advanced driver assistance systems (ADAS) and autonomous driving.

Signal integrity is a key factor for ensuring error-free data communication with all these high-speed digital interfaces. Additionally, many automotive engineers are not familiar with PCIe Gen 3.0 technology.

Rohde & Schwarz and Marvell were the first companies to execute successfully 1000BASE-T1 compliance tests, for Marvell’s 88Q2112 Ethernet transceiver, using an R&S RTO oscilloscope. Improvements to the R&S RTP oscilloscope family include the 16GHz acquisition bandwidth required to perform signal integrity tests and debugging for SerDes, LVDS, PCIe Gen 3.0 and MIPI as well as automotive Ethernet interfaces in the 88Q6113 multi-gigabit automotive switch platform. The R&S RTP includes real-time de-embedding for signal integrity analysis and has the highest acquisition rate on the market, claims Rohde & Schwarz. It also offers bus measurement features that support the high-precision latency measurements essential for debugging switches and networks. 

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