Patent ID: 11914491
Assignee: VIA LABS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The USB integrated circuit according to claim 1, wherein the routing circuit comprises:
a demultiplexer, having an input end coupled to an output end of the first USB port physical layer circuit, wherein a first output end of the demultiplexer is coupled to an input end of the first lane adapter, a second output end of the demultiplexer is coupled to an input end of the second lane adapter, when the USB integrated circuit operates in the testing mode, the demultiplexer couples output end of the first USB port physical layer circuit to the input end of the first lane adapter, and when the USB integrated circuit operates in the working mode, the demultiplexer couples the output end of the first USB port physical layer circuit to the input end of the second lane adapter; and
a multiplexer, having an out end coupled to an input end of the first USB port physical layer circuit, wherein a first input end of the multiplexer is coupled to an output end of the first lane adapter, a second input end of the multiplexer is coupled to an output end of the second lane adapter, when the USB integrated circuit operates in the testing mode, the multiplexer couples input end of the first USB port physical layer circuit to the output end of the first lane adapter, and when the USB integrated circuit operates in the working mode, the multiplexer couples the input end of the first USB port physical layer circuit to the output end of the second lane adapter.