Realtek Semiconductor Inc.

Chen Shen

Neng-Hsien Lin

Yao Feng

Wan-Pei Geng

A chip includes a power pin, a ground pin, a plurality of input/output (I/O) pins, a readable/writable memory, a switching circuit, and a control circuit. The I/O pins include a plurality of mapping pins and a control pin. The readable/writable memory includes a clock port, a plurality of I/O ports, and an enable port. The control circuit selectively activates or does not activate the switching circuit according to the control pin. When the switching circuit is activated, the switching circuit electrically couples the clock port, the I/O ports, and the enable port to the mapping pins respectively.

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Hsinchu, Taiwan

Chen Shen