SYSTEM TO DETECT CHARGER AND REMOTE HOST FOR TYPE-C CONNECTOR

• US 20160179648A1
• Filed: 12/23/2014
• Published: 06/23/2016
• Est. Priority Date: 12/23/2014
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Srivastava, Amit Kumar, Vadivelu, Karthi R.
• Granted Patent: US 9,652,351 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3051 Monitoring arrangements for monitoring the configuration of the computing system or of the computing system component, e.g. monitoring the presence of processing resources, peripherals, I/O links, software programs verification or detection of system hardware configuration G06F11/2247
• CPC Class Codes: G06F 13/387 for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
• CPC Class Codes: G06F 13/4072 Drivers or receivers G06F13/4086 takes precedence; for multistate logic circuits H03K19/0002
• CPC Class Codes: G06F 13/4077 Precharging or discharging
• CPC Class Codes: G06F 13/4295 using an embedded synchronisation
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

The present techniques include detecting a charger and remote host for a Type-C connector. An apparatus, system, and method are described herein. The apparatus comprises a USB Type-C port and a USB receiver detector. A charger and a remote host are differentiated based on the USB receiver detector.

Claims

1. An apparatus, comprising:

a multi-mode port, wherein the multi-mode port is to transmit and receive data according to multiple protocols; and

a USB receiver detector, wherein the receiver detector is to differentiate between a charger and a remote host on the USB receiver detector.

2. The apparatus of claim 1, comprising:

a device controller, wherein the device controller is shared among a plurality of multi-mode ports.

3. The apparatus of claim 2, wherein the device controller is assigned to a port of the plurality of multi-mode ports based on a USB receiver detector state.

4. The apparatus of claim 2, wherein an embedded controller is to map the device controller to a port of the plurality of multi-mode ports.

5. The apparatus of claim 2, comprising:

embedded controller glue logic, wherein the embedded controller glue logic is to configure the physical layer (PHY) of the device controller.

6. The apparatus of claim 1, wherein PHY glue logic is to determine a state of the multi-mode port.

7. The apparatus of claim 1, wherein the charger is not mapped to data lanes of the multi-mode port.

8. The apparatus of claim 1, wherein the charger is differentiated from the remote host with implementing sideband signaling.

9. The apparatus of claim 1, wherein the charger is to present itself as a downstream facing port.

10. The apparatus of claim 9, wherein the multi-mode port is a USB Type-C port.

11. A system, comprising:

a shared device controller;

a plurality of multi-mode ports, wherein at least one charger is coupled to a first port, and at least one remote host is coupled to a second port, and wherein the multi-mode port is to transmit and receive data according to multiple protocols; and

a USB receiver detector, wherein a charger and a remote host are differentiated based on the USB receiver detector.

12. The system of claim 11, wherein the device controller is shared among a plurality of multi-mode ports.

13. The system of claim 11, wherein the device controller is mapped to a port of the plurality of multi-mode ports based on a USB receiver detector state.

14. The system of claim 11, wherein an embedded controller is to map the device controller to a port of the plurality of multi-mode ports.

15. The system of claim 11, comprising:

embedded controller glue logic, wherein the embedded controller glue logic is to configure the physical layer (PHY) of the device controller.

16. The system of claim 15, wherein a PHY glue logic is to determine a state of the multi-mode port.

17. The system of claim 11, wherein the charger is not mapped to data lanes of the multi-mode port.

18. The system of claim 11, wherein the charger is differentiated from the remote host with implementing sideband signaling.

19. The system of claim 11, wherein the charger is to present itself as a downstream facing port.

20. The system of claim 19, wherein the charger does not have host functionality.

21. A method, comprising:

detecting a presence of a device mode at a multi-mode port, wherein the multi-mode port is to transmit and receive data according to multiple protocols;

enabling a USB receiver detector;

enabling a weak driver; and

differentiating between a charger and a remote host based on USB receiver detector states.

22. The method of claim 21, comprising detecting the device mode based on configuration channel pins.

23. The method of claim 21, comprising detecting a charger based on a line state.

24. The method of claim 21, comprising detecting a charger when a pull up driver is enabled on a Dp or a Dn line.

25. The method of claim 24, comprising remapping the device controller to another port when a charger is detected.