Data storage device evaluating a SATA connector to detect a non-SATA host
View Patent ↗A data storage device (DSD) is disclosed comprising a SATA connector and control circuitry comprising a communication module for communicating with a host. At least one pin of the SATA connector is evaluated to detect a host type. When the host type is SATA, the communication module is configured to operate according to a SATA protocol, and when the host type is non-SATA, the communication module is configured to operate according to a non-SATA protocol.
1. A data storage device (DSD) comprising a SATA connector and control circuitry comprising a communication module for communicating with a host, wherein the control circuitry is operable to:
evaluate at least one pin of the SATA connector to detect a host type;
when the host type is SATA, configure the communication module to operate according to a SATA protocol; and
when the host type is non-SATA, configure the communication module to operate according to a non-SATA protocol.
2. The data storage device as recited in claim 1 , wherein the non-SATA host type comprises a Universal Serial Bus (USB) host type.
3. The data storage device as recited in claim 1 , wherein:
the SATA connector comprises a first plurality of data pins and a second plurality of power pins;
the second plurality of power pins comprises at least one five volt pin, at least one twelve volt pin, and at least one reserved pin; and
the control circuitry is operable to evaluate at least one of the power pins to detect the host type.
4. The data storage device as recited in claim 3 , wherein the control circuitry is operable to evaluate the at least one reserved pin of the power pins to detect the host type.
5. The data storage device as recited in claim 3 , wherein the control circuitry is operable to evaluate the at least one twelve volt pin of the power pins to detect the host type.
6. The data storage device as recited in claim 3 , wherein the control circuitry is operable to detect the host type is non-SATA when at least one of the power pins is driven with a voltage.
7. The data storage device as recited in claim 6 , wherein the voltage comprises five volts.
8. The data storage device as recited in claim 7 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type; and
the five volts is generated by a supply pin of a USB connector.
9. The data storage device as recited in claim 1 , wherein:
the SATA connector comprises a first plurality of data pins and a second plurality of power pins;
the first plurality of data pins comprises at least one ground pin; and
the control circuitry is operable to evaluate the at least one ground pin of the first plurality of data pins to detect the host type.
10. The data storage device as recited in claim 1 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the data pins of the SATA connector is connected to a data pin of a USB connector connected to the host.
11. The data storage device as recited in claim 1 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the power pins of the SATA connector is connected to a data pin of a USB connector connected to the host.
12. The data storage device as recited in claim 11 , further comprising a transceiver connected to the at least one of the power pins of the SATA connector.
13. The data storage device as recited in claim 1 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the power pins of the SATA connector is connected to a power pin of a USB connector connected to the host.
14. A method of operating a data storage device comprising a SATA connector and control circuitry comprising a communication module for communicating with a host, the method comprising:
evaluating at least one pin of the SATA connector to detect a host type;
when the host type is SATA, configuring the communication module to operate according to a SATA protocol; and
when the host type is non-SATA, configuring the communication module to operate according to a non-SATA protocol.
15. The method as recited in claim 14 , wherein the non-SATA host type comprises a Universal Serial Bus (USB) host type.
16. The method as recited in claim 14 , wherein:
the SATA connector comprises a first plurality of data pins and a second plurality of power pins;
the second plurality of power pins comprises at least one five volt pin, at least one twelve volt pin, and at least one reserved pin; and
the method further comprises evaluating at least one of the power pins to detect the host type.
17. The method as recited in claim 16 , further comprising evaluating the at least one reserved pin of the power pins to detect the host type.
18. The method as recited in claim 16 , further comprising evaluating the at least one twelve volt pin of the power pins to detect the host type.
19. The method as recited in claim 16 , further comprising detecting the host type is non-SATA when at least one of the power pins is driven with a voltage.
20. The method as recited in claim 19 , wherein the voltage comprises five volts.
21. The method as recited in claim 20 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type; and
the five volts is generated by a supply pin of a USB connector.
22. The method as recited in claim 14 , wherein:
the SATA connector comprises a first plurality of data pins and a second plurality of power pins;
the first plurality of data pins comprises at least one ground pin; and
the method further comprises evaluating the at least one ground pin of the first plurality of data pins to detect the host type.
23. The method as recited in claim 14 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the data pins of the SATA connector is connected to a data pin of a USB connector connected to the host.
24. The method as recited in claim 14 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the power pins of the SATA connector is connected to a data pin of a USB connector connected to the host.
25. The method as recited in claim 14 , wherein:
the non-SATA host type comprises a Universal Serial Bus (USB) host type;
the SATA connector comprises a first plurality of data pins and a second plurality of power pins; and
at least one of the power pins of the SATA connector is connected to a power pin of a USB connector connected to the host.