Patent ID: 6434643
Filing Date: 2002-08-13
Classification: G06F

Abstract:
A peripheral device comprising:a transmission unit for exchanging data with a host and for sending to the host status information indicative of an operating condition of the peripheral device, the transmission unit comprising: an interface for sending data to and receiving data from the host by at least two transfer modes including, a first transfer mode in which data sending and receiving are enabled based on an input/output command sent from the host when transfer time has been reserved, and a second transfer mode in which data sending and receiving are enabled based on an input/output command sent at a regular interval from the host; wherein the status transmission unit has a first transfer function for sending status information by the first transfer mode, a second transfer function for sending status information by the second transfer mode, and a selecting function for selecting the first or second transfer function according to a cause for sending the status information.