Automatic mirrored ROM
AssigneeAdvanced Micro Devices, Inc.
InventorCai YongFeng
Life of this patent
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Abstract
The disclosed method may include detecting, by a control circuit coupled to a first read only memory (ROM) device and a second ROM device, a failure of a first output signal from the first ROM device to a common output. The first ROM device is connected to the common output and the second ROM device is disconnected from the common output. The method also includes switching, by the control circuit in response to detecting the failure, the common output from the first ROM device to the second ROM device. Various other methods, systems, and computer-readable media are also disclosed.
Claims20
A method comprising:
- detecting, by a control circuit coupled to a first read only memory (ROM) device and a second ROM device, a first output signal from the first ROM device and a second output signal from the second ROM device, wherein the first ROM device is connected to a common output for outputting the first output signal as a common output signal and the second ROM device is disconnected from the common output;
- detecting, by the control circuit, a failure of the first output signal;
- and
- switching, by the control circuit in response to detecting the failure, the common output from the first ROM device to the second ROM device to continue outputting the common output signal without a system interruption that causes a system reboot.
A system comprising:
- a common output for outputting a common output signal;
- a first read only memory (ROM) device coupled to the common output;
- a second ROM device disconnected from the common output;
- and
- a control circuit coupled to the first ROM device and the second ROM device, the control circuit configured to:
- detect a failure of the first ROM device on the common output;
- and
- in response to detecting the failures of the first ROM device, switch the second ROM device to the common output to continue outputting the common output signal without a system interruption that causes a system reboot.
A system comprising:
- at least one physical processor;
- a physical memory;
- a common output for outputting a common output signal;
- a first read only memory (ROM) device coupled to the common output;
- a second ROM device disconnected from the common output;
- and
- a control circuit coupled to the first ROM device and the second ROM device, the control circuit configured to automatically couple the second ROM device to the common output in response to detecting a failure of the first ROM device to continue outputting the common output signal without a system interruption that causes a system reboot.
Dependencies are inferred from the claim text.