USB TYPE-C SIGNAL INTERFACE CIRCUIT
3 Assignments
0 Petitions
Accused Products
Abstract
A device includes a USB-C controller instantiated as a first integrated circuit that includes a first set of host terminals coupled to host controllers and a second set of terminals coupled to sets of D+/D− terminals of a type-C receptacle. A D+/D− multiplexer is to selectively couple the first set of host terminals to the second set of terminals. An electrostatic discharge (ESD) protection circuit is coupled between the D+/D− multiplexer and the second set of terminals. A charger detector circuit is coupled between a positive data system terminal and a negative data system terminal of the first set of terminals, the charger detector circuit to detect whether the second set of terminals is coupled to a USB charger through the type-C receptacle.
6 Citations
40 Claims
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1-20. -20. (canceled)
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21. A USB-C controller comprising:
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a first set of terminals to be coupled to a host controller, the first set of terminals comprising a positive data system terminal and a negative data system terminal; a second set of terminals to be coupled to sets of D+/D−
terminals of a type-C receptacle;a multiplexer to selectively couple the first set of terminals to the second set of terminals; and a charger detector circuit coupled between the positive data system terminal and the negative data system terminal of the first set of terminals, the charger detector circuit to detect whether the second set of terminals is coupled to a USB charger through the type-C receptacle; wherein the USB-C controller is instantiated as an integrated circuit (IC) chip. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system comprising:
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a Universal Serial Bus (USB) host controller; a host controller; a USB type-C receptacle; and a USB-C controller instantiated as an integrated circuit (IC) chip, wherein the USB-C controller is coupled to the USB type-C receptacle, to the USB host controller, and to the host controller, and wherein the USB-C controller comprises; a first set of first terminals coupled to the USB host controller, the first set of terminals comprising a positive data system terminal and a negative data system terminal; a second set of terminals coupled to the host controller; a third set of terminals coupled to sets of D+/D−
terminals of the USB type-C receptacle;a multiplexer to selectively couple the first and second sets of terminals to the third set of terminals; and a charger detector circuit coupled between the positive data system terminal and the negative data system terminal of the first set of terminals, the charger detector circuit to detect whether the third set of terminals is coupled to a USB charger through the type-C receptacle. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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40. A method comprising:
operating a USB-C controller instantiated as an integrated circuit (IC) chip, wherein the USB-C controller comprises a multiplexer and a charger detector circuit, and wherein operating the USB-C controller comprises; selectively coupling, by the multiplexer, a first set of terminals to a second set of terminals, wherein the first set of terminals are coupled to a host controller and the second set of terminals are coupled to sets of D+/D−
terminals of a type-C receptacle; anddetecting, by the charger detector circuit, whether the second set of terminals are coupled to a USB charger through the type-C receptacle, wherein the charger detector circuit is coupled between a positive data system terminal and a negative data system terminal of the first set of terminals.
Specification