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

2008-09-23

Patel, Niketa I. (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

C710S007000, C710S019000, C710S037000, C710S110000

Reexamination Certificate

active

07428600

ABSTRACT:
When transfer condition information is set and the start of automatic control transfer is instructed, a transfer controller (host controller) automatically issues a setup stage transaction and automatically transfers a setup stage packet, then, if there is data to be transferred, it automatically issues a data stage transaction and automatically transfers a data stage packet. It then automatically issues a status stage transaction and automatically transfers a status stage packet. Device request data, the total size of transfer data, data stage present/absent information, transfer direction in the data stage, and maximum packet size are set in transfer condition registers. A pipe region is allocated in the packet buffer during host operation of USB On-The-Go.

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