A bus interface permits an upstream bandwidth and a downstream bandwidth to be separately selected. In one implementation a link control module forms a bidirectional link with another bus interface by separately configuring link widths of an upstream unidirectional sub-link and a downstream unidirectional sub-link.

 
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< Data transfer control device, electronic equipment, and method for a data transfer through a bus, the data transfer control device including a register and a packet buffer that are commonly used during a host operation and a peripheral operation

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