Port switching circuit, controller, solid state disk, storage product, and server

Abstract

The present application relates to the technical field of solid state disks, and discloses a port switching circuit, a controller, a solid state disk, a storage product, and a server. The port switching circuit comprises: a mode identification circuit and a gating circuit, wherein when the mode identification circuit identifies that a plurality of external devices are connected, the mode identification circuit outputs a multi-port signal to the gating circuit, the multi-port signal being used for controlling the gating circuit to transmit a control signal and data between one external device and a corresponding storage device. According to the present application, a bus interface connected to a gating circuit is determined on the basis of the number of external devices connected, that is, when one external device is connected, only one bus interface is used, and a storage device is in a single-port mode; and when a plurality of external devices are connected, one bus interface is used for each external device, and the storage device is in a multi-port mode. Thus, a single-port / multi-port SSD design is achieved on a hardware single board, and a multi-port SSD product specification is implemented.

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