Patent ID: 7809877
Filing Date: 2010-10-05
Classification: G06F

Abstract:
1. A host apparatus comprising: a host controller; a plurality of card slots into each of which a memory card can be inserted; and a slot switching section provided between the host controller and the plurality of card slots and for switching a connection destination of a signal line from the host controller, between the plurality of card slots, in accordance with an instruction from the host controller, thereby switching card slots to be a control target, wherein the host controller can divide a preliminary process for writing to or reading out from a memory card inserted in the card slot, into a plurality of unit processes for execution, and the host controller, when a second memory card, which is different from a first memory card, is inserted into a second card slot while writing or reading is being performed with respect to the first memory card inserted in a first card slot, repeatedly performs a new-card preliminary division process including the steps of: (a) switching the control target from the first card slot to the second card slot using the slot switching section; (b) executing the unit process of the preliminary process with respect to the second memory card; (c) switching the control target from the second card slot to the first card slot using the slot switching section; and (d) performing writing or reading with respect to the first memory card.