Communication control semiconductor device and interface system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Aug 5, 2004
app pub date -
Mar 19, 2004
filing date -
Mar 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Host control means (23) which performs communication control as a host, and function control means (24) which performs communication control as a function, are mounted on one semiconductor chip. With its mounting, the host control means and the function control means are configured so as to be able to operate simultaneously. There are further provided an input/output terminal to and from which a data signal transmitted/received by communication control operations of these control means, switching means (29) connected to the input/output terminal and capable of switching a path through which a transmit/receive data signal passes upon communications under the control of the host control means, and a path through which the transmit/receive data signal passes upon communications under the control of the function control means, and a switching control register (27C) which controls the state of the switching means.
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