Patent ID: 9201604
Filing Date: 2015-12-01
Classification: G06F

Abstract:
1. A RAID controller for a semiconductor storage device (SSD), comprising: a disk mount coupled to a set of SSD memory disk units, the set of SSD memory disk units comprising a set of volatile semiconductor memories; a disk monitoring unit directly coupled to the disk mount for monitoring the set of SSD memory disk units; a disk plug and play controller directly coupled to the disk monitoring unit and the disk mount for controlling the disk mount; a high speed host interface directly coupled to the disk monitoring unit and the disk mount for providing high-speed host interface capabilities; and a controller unit coupled to the RAID controller; wherein the disk monitoring unit, the disk plug and play controller, and the high speed host interface are connected in series; and wherein the controller unit comprises: a memory control module for controlling data input/output of the set of SSD memory disk units; a DMA control module that controls the memory control module to store data in the set of SSD memory disk units or reads data from the set of SSD memory disk units to provide the data to the host, according to an instruction from the host received through the host interface unit; a buffer that buffers data according to control of the DMA control module; a synchronization control module that, when receiving a data signal corresponding to the data read from the set of SSD memory disk units by the control of the DMA control module through the DMA control module and the memory control module, adjusts synchronization of a data signal so as to have a communication speed corresponding to a PCI-Express communications protocol to transmit the synchronized data signal to the PCI-Express host interface unit and, when receiving a data signal from the host through the PCI-Express host interface unit, adjusts synchronization of the data signal so as to have a transmission speed corresponding to a communications protocol used by the set of SSD memory disk units to transmit the synchronized data signal to the set of SSD memory disk units through the DMA control module and the memory control module; and a high-speed interface module that processes the data transmitted/received between the synchronization control module and the DMA control module at high speed, includes a buffer having a double buffer structure and a buffer having a circular queue structure, and processes the data transmitted/received between the synchronization control module and the DMA control without loss of high speed by buffering the data transmitted/received between the synchronization control module and the DMA control module using the buffers and adjusting data clocks.