Genesys Logic, Inc.

Ching-jung Yu

Chia-Yu Chan

Chih-jung Lin

Nei-Chiung Perng

An electronic apparatus having switching unit is described. The electronic apparatus includes a first peripheral device, a second peripheral device and a switching unit. The first peripheral device communicates with the host unit. The second peripheral device communicates with the host unit and the first peripheral device, respectively. The switching unit switches to the host unit and the first peripheral device for allowing the host unit to access the first peripheral device via a first path. The switching unit switches to the host unit and the second peripheral device for allowing the host unit to access the second peripheral device via a second path. The switching unit switches to the first peripheral device and the second peripheral device for allowing the first peripheral device to access the second peripheral device via a third path.

Electronic apparatus having switching unit

A transmission gate circuit includes a first PMOS device, a first NMOS device, a second PMOS device, a second NMOS device, and a third transistor. A gate electrode, a first electrode and a second electrode of the first PMOS device are coupled to a first control signal, an input end, and an output end, respectively. A gate electrode, a first electrode and a second electrode of the first NMOS device are coupled to a second control signal, the input end, and the output end, respectively. A gate electrode, a first electrode and a second electrode of the second PMOS device are coupled to the first control signal, an input end, and a body electrode of the first PMOS device, respectively. A gate electrode, a first electrode, and a second electrode of the second NMOS device are coupled to the second control signal, a body electrode of the first PMOS device, and the output end, respectively. A gate electrode, a first electrode and a second electrode of the third PMOS device are coupled to a second control signal, a first supply voltage, and the body electrode of the first PMOS device, respectively.

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Chiayi, Taiwan

Ching-jung Yu