Data storage device to communicate with a host in a SATA or a USB mode

• US 9,158,722 B1
• Filed: 11/02/2011
• Issued: 10/13/2015
• Est. Priority Date: 11/02/2011
• Status: Expired due to Fees

• Current Assignee: Western Digital Technologies Incorporated (Western Digital Corporation)
• Original Assignee: Western Digital Technologies Incorporated (Western Digital Corporation)
• Inventors: Jenkins, Dean M., Campbell, Tegan
• Primary Examiner(s): Tsai, Henry
• Assistant Examiner(s): BORROMEO, JUANITO C
• Application Number:
  US13/287,947
• Time in Patent Office: 1,441 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices

Abstract

A data storage device to communicate with a host is disclosed. The data storage device includes a controller to select a SATA mode or a USB mode and a SATA connector coupled to the controller. If the USB mode is selected for communication with the host, a plurality of pins of the SATA connector are utilized to transmit USB signals from the controller to the host.

Claims

1. A data storage device configured to communicate with an external host system, the data storage device comprising:

a controller;

a first SATA connector coupled to the controller and comprising;

first and second SATA transmit data pins and first and second SATA receive data pins; and

first, second and third SATA power pins; and

a USB adapter comprising a second SATA connector physically mated to the first SATA connector and a USB connector comprising;

a USB power pin;

first and second USB 2.0 data pins;

first and second USB 3.0 transmit data pins; and

first and second USB 3.0 receive data pins;

wherein the USB adapter further comprises a plurality of traces that electrically connect;

the first and second USB 2.0 data pins to the first and second SATA power pins, respectively;

the first and second SATA transmit data pins to the first and second USB 3.0 transmit data pins, respectively;

the first and second SATA receive data pins to the first and second USB 3.0 receive data pins, respectively; and

the third SATA power pin to the USB power pin;

wherein, in a USB 2.0 mode, the controller is configured to transmit data signals to a host USB connector over the first and second SATA power pins and the first and second USB 2.0 data pins; and

wherein, in a USB 3.0 mode, the controller is further configured to transmit data signals to the host USB connector over the first and second SATA transmit data pins and the first and second USB 3.0 transmit data pins.

2. The data storage device of claim 1, wherein, in the USB 3.0 mode, the controller is further configured to receive USB signals from the host USB connector over the first and second SATA receive data pins and the first and second USB 3.0 receive data pins.

3. The data storage device of claim 2, wherein, in the USB 2.0 and 3.0 modes, the controller is further configured to receive a USB Vbus signal over the third SATA power pin.

4. The data storage device of claim 1, wherein the USB connector is a USB 3.0 connector.

5. The data storage device of claim 1, wherein, in a SATA mode, the controller is further configured to receive SATA signals over the first and second SATA receive data pins.

6. The data storage device of claim 1, wherein the data storage device comprises a hard disk drive.

7. The data storage device of claim 1, wherein the data storage device comprises a solid state drive.

8. A method for a data storage device to communicate with a host, the method comprising:

identifying a SATA mode, a USB 2.0 mode or a USB 3.0 mode for communicating with a host;

connecting first and second USB 2.0 data pins of a USB connector to first and second SATA power pins, respectively, of a SATA connector;

connecting first and second USB 3.0 transmit data pins of the USB connector to first and second SATA transmit data pins, respectively, of the SATA connector;

connecting first and second USB 3.0 receive data pins of the USB connector to first and second SATA receive data pins, respectively, of the SATA connector;

in the USB 2.0 mode, transmitting data signals from the data storage device to the host over the first and second SATA power pins and the first and second USB 2.0 data pins; and

in the USB 3.0 mode, transmitting data signals from the data storage device to the host over the first and second SATA transmit data pins and the first and second USB 3.0 transmit data pins.

9. The method of claim 8, further comprising, in the USB 3.0 mode, receiving USB signals from the host over the first and second SATA receive and first and second USB 3.0 receive data pins data pins.

10. The method of claim 9, further comprising, in the USB 3.0 mode, receiving a USB Vbus signal over a third SATA power pin of the SATA connector.

11. The method of claim 8, wherein the USB connector is a USB 3.0 connector.

12. The method of claim 8, further comprising, in the SATA mode, receiving SATA signals from the host over the first and second SATA receive data pins.

13. The method of claim 8, wherein the data storage device comprises a hard disk drive.

14. The method of claim 8, wherein the data storage device comprises a solid state drive.