Intel® 500 Series Chipset Family On-Package PCH Datasheet Volume 1

Datasheet

ID 631119
Date 13/07/2021 00:00:00
Public Content
Document Table of Contents

USB 3.2 Hosting DCI.DBC

It relies on Debug Class Devices (DbC) which is comprised of a set of logic that is bolted to the side of the xHCI host controller and enable the target to act the role of a USB device for debug purpose. This path uses the USB packet protocol layer, USB layer flow control and USB physical layer at 5 Gbps (for USB 3.2) and 480Mbps (for USB 2.0). DCI.DBC - Fast speed. USB 3.2 only works in S0. USB 2.0 survives S0ix and Sx states and provides early boot access.