Serial advanced technology attachment device presence detection and hot-plug in low power mode

Serial advanced technology attachment device presence detection and hot-plug in low power mode

A method, circuit, and system are disclosed. In one embodiment, the method comprises sending a step pulse across a serial advanced technology attachment (SATA) transmission line, determining the length of time the transmission line takes to charge from common mode voltage to supply voltage, and dete...

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Bibliographische Detailangaben
Hauptverfasser: Ooi, Eng Hun, Deng, Fei, Ng, Jien Hau, Bedwani, Serge, Tan, Siang Lin
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method, circuit, and system are disclosed. In one embodiment, the method comprises sending a step pulse across a serial advanced technology attachment (SATA) transmission line, determining the length of time the transmission line takes to charge from common mode voltage to supply voltage, and determining whether a device is connected to the SATA transmission line based on the length of the transmission line charge time.