Bus quieting circuits, systems and methods
First Claim
1. An electronic wiring board article of manufacture comprising:
- a printed wiring board having a substantially insulative planar board element, conductors in or on said board element; and
an integrated circuit mounted on said printed wiring board comprising;
a data source supplying data and successive valid data control signals, wherein transitions occur in the data during intervals between said valid data control signals;
a source of at least one quieting control signal independent of said valid data control signals;
a selector having a first input connected to said data source, and a second input, and an output;
a circuit connected to said output of said selector to receive data from said data source via said selector; and
a source of a quieting signal connected to said second input, and said selector responsive to said at least one quieting control signal to select said quieting signal during at least a portion of the interval between said valid data control signals, and to select said data source in response to at least some of said valid data control signals.
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Accused Products
Abstract
An electronic device (PPU 110) includes a data source (7201) supplying data and successive control signals indicative of valid-data, wherein transitions occur in the data during intervals between the signals indicative of valid-data, and a selector (7205) having a first input connected to the data source (7201), and a second input (7214), and an output. A circuit (7207) is connected to the output of the selector (7205) to receive data from the data source (7201) via the selector (7205). A source of a quieting signal (7220) is connected to the second input (7214), and the selector (7205) is responsive to the control signals (7206) to select the quieting signal (7220) during at least a portion of the interval between the signals indicative of valid data, and to select the data source in response to at least some of the successive control signals indicative of valid-data. Other devices, systems and methods are also described.
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Citations
19 Claims
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1. An electronic wiring board article of manufacture comprising:
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a printed wiring board having a substantially insulative planar board element, conductors in or on said board element; and an integrated circuit mounted on said printed wiring board comprising; a data source supplying data and successive valid data control signals, wherein transitions occur in the data during intervals between said valid data control signals; a source of at least one quieting control signal independent of said valid data control signals; a selector having a first input connected to said data source, and a second input, and an output; a circuit connected to said output of said selector to receive data from said data source via said selector; and a source of a quieting signal connected to said second input, and said selector responsive to said at least one quieting control signal to select said quieting signal during at least a portion of the interval between said valid data control signals, and to select said data source in response to at least some of said valid data control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification