Data storage device and method for lane detection and configuration
A data storage device and method for lane detection and configuration are provided. In one embodiment, a data storage device is provided comprising a memory, an interface, and a controller. The controller is configured to detect whether a cable coupled with the interface is providing a first channel configuration signal that indicates that the cable is in a first cable orientation or a second channel configuration signal that indicates that the cable is in a second cable orientation. In response to detecting that the cable is not providing either the first or the second channel configuration signal, the controller uses a default lane configuration to communicate with the host via the cable. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.
1. A data storage device comprising:
a memory;
an interface configured to couple with a cable; and
a controller configured to communicate with the memory and the interface and further configured to:
detect whether the cable is providing a first channel configuration signal that indicates that the cable is in a first cable orientation or a second channel configuration signal that indicates that the cable is in a second cable orientation;
in response to detecting that the cable is providing the first channel configuration signal, use a first lane configuration to communicate with a host via the cable;
in response to detecting that the cable is providing the second channel configuration signal, use a second lane configuration to communicate with the host via the cable; and
in response to detecting that the cable is providing neither the first nor the second channel configuration signal either due to a lack of an orientation-handling circuit in the cable or due to the cable comprising the orientation-handling circuit but the first or the second channel configuration signal being undetectable due to noise or invalid information, use a default lane configuration to communicate with the host via the cable.
2. The data storage device of claim 1 , wherein the controller is further configured to check for the first and second channel configuration signals a threshold number of times before using the default lane configuration.
3. The data storage device of claim 2 , wherein the controller is further configured to insert a delay between the checking for the first channel configuration signal and the checking for the second channel configuration signal.
4. The data storage device of claim 1 , wherein the interface comprises a pull-down resistor.
5. The data storage device of claim 1 , wherein the interface comprises a universal serial bus Type C interface.
6. The data storage device of claim 5 , wherein an interface in the host comprises a universal serial bus Type A interface.
7. The data storage device of claim 1 , wherein the default lane configuration is set in a fuse.
8. The data storage device of claim 1 , wherein the memory comprises a three-dimensional memory.
9. A method comprising:
performing the following in a data storage device comprising an interface and a memory:
detecting whether a cable connected with the data storage device is providing a first cable orientation signal or a second cable orientation signal;
in response to detecting that the cable is providing the first cable orientation signal, using a first channel configuration to communicate with a host via the cable;
in response to detecting that the cable is providing the second cable orientation signal, using a second channel configuration to communicate with the host via the cable; and
in response to detecting that the cable is providing neither the first nor the second cable orientation signals either due to a lack of an orientation-handling circuit in the cable or due to the cable comprising the orientation-handling circuit but the first or the second channel configuration signal being undetectable due to noise or invalid information, using a default channel configuration to communicate with the host via the cable.
10. The method of claim 9 , further comprising checking for the first and second cable orientation signals a threshold number of times before using the default channel configuration.
11. The method of claim 10 , further comprising inserting a delay between the checking for the first channel configuration signal and the checking for the second channel configuration signal.
12. The method of claim 9 , wherein the interface comprises a pull-down resistor.
13. The method of claim 9 , wherein the interface comprises a universal serial bus Type C interface.
14. The method of claim 13 , wherein an interface in the host comprises a universal serial bus Type A interface.
15. The method of claim 9 , wherein the default channel configuration is set in a fuse in the data storage device.
16. A data storage device comprising:
a memory;
an interface configured to couple with a cable;
means for detecting whether the cable is providing a first channel configuration signal that indicates that the cable is in a first cable orientation or a second channel configuration signal that indicates that the cable is in a second cable orientation; and
means for using a default lane configuration to communicate with a host via the cable in response to detecting that the cable is providing neither the first nor the second channel configuration signal either due to a lack of an orientation-handling circuit in the cable or due to the cable comprising the orientation-handling circuit but the first or the second channel configuration signal being undetectable due to noise or invalid information.
17. The data storage device of claim 1 , wherein the orientation-handling circuit comprises a pull-up resistor.
18. The method of claim 9 , wherein the orientation-handling circuit comprises a pull-up resistor.