Patent ID: 7394304
Filing Date: 2008-07-01
Classification: G06F,H03K

Abstract:
1. A semiconductor integrated circuit comprising: a logic circuit unit; a plurality of semiconductor element electrodes; a signal selecting unit operable to select a signal line among a plurality of signal lines externally extending from said logic circuit unit and to electrically connect the selected signal line to a first semiconductor element electrode among said plurality of semiconductor element electrodes; and a signal control unit operable to control said signal selecting unit, wherein, in accordance with change of an operating state of said logic circuit unit, said signal selecting unit connects electrically the selected signal line to a second semiconductor element electrode among said plurality of semiconductor element electrodes, the second semiconductor element electrode being different from the first semiconductor element electrode; wherein said signal control unit generates connection information relating to electrical connection of the plurality of signal lines to said plurality of semiconductor element electrodes, the electrical connection being made by said signal selecting unit in accordance with the change of the operating state of said logic circuit unit; wherein said signal control unit sends the connection information to said signal selecting unit; and wherein said signal selecting unit retains new electrical connection based on the connection information until a predetermined retaining period terminates after receiving the connection information from said signal control unit.