Data transfer control device, electronic equipment, and...

Details Data transfer control device, electronic equipment, and... Data transfer control device, electronic equipment, and...

2003-02-21

2008-12-23

Chen, Alan (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S005000, C710S036000, C710S052000

Reexamination Certificate

active

07469304

ABSTRACT:
A data transfer control device includes an OTG (state) controller which controls a plurality of states including a host operation state and a peripheral operation state, a host controller which is connected with a transceiver during the host operation, a peripheral controller which is connected with the transceiver during the peripheral operation, a register section including transfer condition registers which are used commonly during the host operation and the peripheral operation, and a buffer controller which controls access to a packet buffer used commonly by the host controller and the peripheral controller. Pipe regions PIPE0to PIPEe are allocated in the packet buffer during the host operation, and endpoint regions EP0to EPe are allocated in the packet buffer during the peripheral operation.

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