Control chip and connection module utilizing the same
AssigneeNuvoton Technology Corporation
InventorShih-Hsun TUNG
Life of this patent
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Abstract
A control chip including a first pin, a second pin, a trigger circuit and a control circuit is provided. The first pin is configured to couple to a connection port. The second pin is configured to couple to the connection port. The trigger circuit sets a level of the second pin to a second level when the connection port is coupled to an external electronic device and the level of the second pin is equal to a first level. The control circuit maintains the level of the second pin at the second level when a voltage of the first pin is equal to a pre-determined voltage.
Claims20
A control chip, comprising:
- a first pin configured to couple to a connection port;
- a second pin configured to couple to the connection port;
- a trigger circuit setting a level of the second pin to a second level when the connection port is coupled to an external electronic device and the level of the second pin is equal to a first level;
- and
- a control circuit maintaining the level of the second pin at the second level when a voltage of the first pin is equal to a pre-determined voltage.
A connection module comprising:
- a first connection port configured to couple to a first external electronic device;
- and
- a control chip comprising:
- a first pin configured to couple to the first connection port;
- a second pin configured to couple to the first connection port;
- a trigger circuit setting a level of the second pin to a second level when the first connection port is coupled to the first external electronic device and the level of the second pin is equal to a first level;
- and
- a control circuit maintaining the level of the second pin at the second level when a voltage of the first pin is equal to a pre-determined value.
A control chip comprising:
- a first pin configured to couple to a connection port;
- a second pin configured to couple to the connection port;
- a trigger circuit providing a specific level to the second pin when the connection port is coupled to an external electronic device;
- and
- a control circuit maintaining a level of the second pin at the specific level when a voltage of the first pin is equal to a pre-determined voltage.
Dependencies are inferred from the claim text.