| 摘要 |
PROBLEM TO BE SOLVED: To provide a bus interface control that can selectively connect or isolate a board to or from a bus, without requiring as much board real estate as in conventional systems. SOLUTION: The computer data bus interface control 418 selectively connects a computer data bus 202 to functional components 404 of a circuit board 400 or isolates the bus 202 from the functional components 404. The bus interface control 418 also selectively provides pull-up voltage to the bus 202, as needed (704). The connection selection (706, 710) and the pull-up voltage selection (704, 708) can be based, for example, on whether the board is installed in a system slot or peripheral slot of the bus 202. COPYRIGHT: (C)2005,JPO&NCIPI |
