Method and circuit arrangement for switching an electronic circuit into a power-saving mode
First Claim
1. A method for switching an electronic circuit into a power-saving mode by a switchover signal, wherein a data output pin of the circuit is also used as an input pin for an external signal on the basis of which the switchover signal is then produced.
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Accused Products
Abstract
A method and circuit arrangement are provided for switching an electronic circuit into a power-saving mode by a switchover signal that is characterized in that a data output pin of the circuit is simultaneously used as an input pin for an external signal on the basis of which the switchover signal is then produced. When method or circuit arrangement is used, an electronic circuit can be placed in the power-saving mode without the need to provide an additional connecting pin for this purpose.
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Citations
20 Claims
- 1. A method for switching an electronic circuit into a power-saving mode by a switchover signal, wherein a data output pin of the circuit is also used as an input pin for an external signal on the basis of which the switchover signal is then produced.
- 7. A circuit arrangement for switching an electronic circuit into a power-saving mode by a switchover signal, wherein a data output pin of the circuit is also used as an input pin for an external signal on the basis of which the switchover signal is then produced.
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16. A method for switching an electronic circuit into a power-saving mode, the method comprising the steps of:
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detecting an absence of data transmission on a data output pin of the electronic circuit by a detector, the detector providing a first signal to a combiner based on the detection of the absence of data transmission;
detecting a power-save signal on the data output pin by a comparator, the comparator providing a second signal to the combiner based on the detection of the power-save signal, the power-save signal being inputted from an external controller to the data output pin of the electronic circuit;
comparing the first signal and the second signal; and
switching the electronic circuit into the power-saving mode on the basis of the comparison of the first signal and the second signal. - View Dependent Claims (17, 18, 19, 20)
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Specification