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How does the eMarker realize encryption | The first PD3.1 certified chip in this world HUSB332B

2 15, 2022

HUSB332B is the first chip in the industry to pass the USB PD3.1 E-Marker Silicon certification test, TID 6773. HUSB332B supports PD3.1 EPR 240W power transmission and USB4 Gen3 40Gbps data transmission, suitable for 240W USB-C to USB-C cables. HUSB332B has its own encryption function, which can be applied to the identification of the cable by the device, and its custom key is convenient for manufacturers to customize.

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HUSB332B Product Features

The encryption algorithm of HUSB332B is implemented as follows: After connection, Source detects Ra, but does not provide VCONN power, and the eMarker detection mechanism does not execute; Sink requests 5V PDO and enters PD RDY state; Sink confirms that Source is the target product (relying on the initiative to initiate SOP Discover Identity );The Sink runs VCONN Swap and powers to the eMarker; the Sink executes the eMarker detection command, issues the Discover Identity command, and the eMarker replies; the Sink runs the custom VDM command, which contains 6 VDO data, and the eMarker replies with 6 VDO data. The algorithm should be controlled by the program; run VCONN Swap and close VCONN; run fast charge.

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All rights reserved © 2023. All Rights Reserved By Hynetek Semiconductor Co., Ltd. GuangDong ICP No. 19101561 Contact Us | Privacy Policy | Terms of Sale
All rights reserved © 2022. All Rights Reserved By Hynetek Semiconductor Co,. Ltd.
Guangdong ICP No. 19101561 Contact Us | Privacy Policy | Terms of Sale