Extensible host controller and an operation method thereof
US10372660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | May 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An extensible host controller (xHC) applied to a host includes universal serial bus (USB) module, a control circuit, an xHC interface circuit, a peripheral component interconnect express (PCIE) bus. The USB module includes a USB interface circuit and a predetermined interface circuit. The PCIE bus supports a USB mode and a predetermined data transmission mode. When a USB device is connected to the USB module, the control circuit issues first requests to the USB device to let the host utilize the USB mode and the USB interface circuit to communicate with the USB device; and when a USB host is connected to the USB module, the control circuit responds to second requests issued from the USB host to let the host utilize the predetermined data transmission mode and the predetermined interface circuit to communicate with the USB host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.