Method and apparatus for automatically selecting clock voltage l

Details Method and apparatus for automatically selecting clock voltage l Method and apparatus for automatically selecting clock voltage l

1997-12-31

2000-05-23

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Integrated structure

327566, H01L 2500

Patent

active

060669810

ABSTRACT:
A motherboard/daughterboard assembly is configured to permit upgrading of a system to a microprocessor requiring different clock signals. The motherboard includes a clock generator mounted on the motherboard with a control input terminal and an output terminal. The clock generator delivers a first and second clock signal on the output terminal in response to receiving a first and second signal on the control input terminal, respectively. A first electrical connector is mounted on the motherboard and has a first terminal. The first terminal is coupled to the control input terminal of the clock generator. The daughterboard has a second electrical connector mounted thereon, and a first terminal. The second electrical connector is mateable with the first electrical connector to electrically engage the first terminals of the first and second electrical connectors. The first terminal of the second electrical connector is adapted to be connected to one of a first and second voltage supply to generate one of the first and second signals on the control input terminal of the clock generator in response to the first and second electrical connectors being mated together.

REFERENCES:
patent: 4674007 (1987-06-01), Tragen
patent: 5277595 (1994-01-01), Clark
patent: 5604888 (1997-02-01), Kiani-Shabestari et al.

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