Systems for synchronizing resets in multi-clock frequency applications
First Claim
1. A system for synchronizing a reset signal to a local clock, comprising:
- a local clock terminal;
a reset terminal;
a synchronized reset output terminal; and
synchronizing circuitry coupled between the clock terminal, the reset terminal, and the synchronized reset output terminal;
wherein the synchronizing circuitry synchronizes a received reset signal to the local clock signal and outputs a synchronized reset signal on the synchronized reset output terminal.
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Accused Products
Abstract
Methods and systems for synchronizing a reset signal with a local clock that drives a circuit. In the circuit, the reset signal can be used to reset one or more flip-flops, memory devices, and/or logic. Sychronization of the reset signal allows the reset signal to change at an appropriate time period in relation to the lock clock signal driving the circuit. This ensures the circuit will remain stable during reset, and no data will be lost as it is processed in the circuit. Other aspects of the invention can include using a plurality of reset signals (e.g., software, hardware, local software, etc.) to form the reset signal and using a reset control system to control resets during testing of the circuit.
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Citations
16 Claims
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1. A system for synchronizing a reset signal to a local clock, comprising:
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a local clock terminal;
a reset terminal;
a synchronized reset output terminal; and
synchronizing circuitry coupled between the clock terminal, the reset terminal, and the synchronized reset output terminal;
wherein the synchronizing circuitry synchronizes a received reset signal to the local clock signal and outputs a synchronized reset signal on the synchronized reset output terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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means for processing data; and
means for synchronizing a reset with of the means for processing data. - View Dependent Claims (13, 14, 15, 16)
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Specification