| 摘要 |
According to one embodiment, controller and a device includes A controller includes: a command completion recognizer 33 recognizes that an SDB FIS can be sent after the completion of data transfer according to the FPDMA command between a host apparatus and the same; an R_RDY response suppressing control signal generator 35 generates an R_RDY response suppressing control signal based on a recognition result from the command completion recognizer; an R_RDY response suppresser 41 suppresses an R_RDY response with respect to X_RDY received from the host apparatus in response to the R_RDY response suppressing control signal; and an SDB FIS sender 34 sends an SDB FIS to the host apparatus after the R_RDY response suppression control.
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