Western Digital Technologies, Inc.

Or Faerman

Israel Zimmerman

Mahmud Asfur

Mordekhay Zehavi

Doron Ganon

Ofer Shahar

Disclosed herein are devices and systems that embed a physical layer (e.g., an M-PHY) on a configurable integrated circuit (e.g., an FPGA) and include glue hardware that provides AC coupling between a high-speed serial communication device (e.g., a MIPI device) and the configurable integrated circuit. The glue hardware provides AC coupling using only resistors, capacitors, and inductors. The configurable integrated circuit includes a logic block that manages the operation to provide the desired PHY connectivity. Because the disclosed devices and systems use AC coupling, the signaling drive and receive paths are controlled based on the received signal frequency and not based on the mode (e.g., LS mode or HS mode). Specifically, the line state of the MIPI device is inferred from observation of signal transitions as opposed to direct detection of DC signal levels.

Embedded physical layers with passive interfacing for configurable integrated circuits

Various apparatuses, systems, methods, and media are disclosed to provide wired communication interface with common mode voltage adjustment for high bit rate communication between devices. In one example, a high speed data communication interface can split the input signal into a high frequency component and a low frequency component. The high speed data communication interface can adjust the common mode voltage using the low frequency component and combine the high frequency component and the low frequency component by superposition after adjusting the common mode voltage.

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Kibbutz Yifat, Israel

Or Faerman