Apparatus and method for exchanging status information between boards
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United States of America Patent
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-
Oct 19, 2004
Grant Date -
Jul 4, 2002
app pub date -
Dec 26, 2001
filing date -
Dec 26, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for exchanging information between printed circuit board assemblies of the present invention are disclosed. According to the invention, the number of address pins are assigned according to the amount of information to be exchanged between the boards. In a preferred embodiment, where data is transferred in 8 bit words, the amount of data that can be transferred using an address bits is given by 8.times.2.sup.n. Thus, more status information can be exchanged with fewer edge pins. The duplication function between boards can so be more effectively implemented.
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