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

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

2003-03-04

2008-03-25

Vaughn, Jr., William (Department: 2144)

Electrical computers and digital processing systems: multicomput

Computer-to-computer session/connection establishing

Network resources access controlling

Reexamination Certificate

active

07349973

ABSTRACT:
A transaction is automatically issued with respect to one of end points and data is automatically transferred while the remaining data size of the transfer data is calculated based on the total size and the maximum packet size. When the remaining data size in the current transaction is less than the maximum packet size, the next transaction is issued automatically, and a short packet is transferred automatically to nest one of the end points. When the payload size of the packet to be transferred by the current transaction is the maximum packet size and the remaining data size of the transfer data is zero, a short packet of zero data length is transferred automatically to the next one of the end points. When DMA transfer is complete and the remaining data to be transferred is zero, a short packet of zero data length is transferred automatically in response to an IN token from a host. Data transfer according to USB On-The-Go is performed.

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