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

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

2005-11-08

2005-11-08

Shin, Christopher B. (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

C710S305000, C710S033000, C713S300000

Reexamination Certificate

active

06963933

ABSTRACT:
A state controller of a data transfer processing circuit switches an operation of an A-device or a B-device between a host operation and a peripheral operation by state transition. A power supply switch circuit connects a power supply circuit with a VBUS line based on transition of the state controller. A power supply switching circuit of a power supply control circuit connects the VBUS line or the power supply circuit with the data transfer processing circuit based on a switching signal. The switching signal is generated based on an output signal of a switch circuit or a control signal from the state controller.

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U.S. patent application Ser. No. 10/376,548, Saito et al., filed Mar. 4, 2003.
Nobuyuki Saito; “OTG Controller LSI Taking Reduction of CPU Load into Consideration”; Design Wave Magazine; Apr. 2002; pp 82-88 and 166 w/English abstract.

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