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US 12,602,162 B2Granted
Memory training enhancements
AssigneeAdvanced Micro Devices, Inc.
InventorAaron D Willey
Life of this patent
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Abstract
A data processing system includes a data processor having a memory controller, and a memory. The memory is coupled to the memory controller and is for reading and writing data synchronously with respect to a clock signal. The memory includes a sensor circuit that is responsive to a control signal to output a measured value without using the clock signal.
Claims20
A data processing system, comprising:
- a data processor having a memory controller, wherein the data processor has an output for providing a clock signal;
- and
- an integrated circuit memory coupled to the memory controller for reading and writing data synchronously with respect to the clock signal, wherein the integrated circuit memory includes a sensor circuit that is responsive to a control signal to output a measured value without using the clock signal.
An integrated circuit memory, comprising:
- a control logic circuit having a first input for receiving a clock signal, a second input for receiving a command signal, and an output for providing a control signal in response to a predetermined state of the second input;
- a memory array;
- access circuitry responsive to commands received on the second input synchronously with the clock signal to access data in the memory array;
- and
- a sensor circuit for outputting a measured value on at least one output terminal of the integrated circuit memory in response to an activation of the control signal,
- wherein the control logic circuit is responsive to the predetermined state of the second input to activate the control signal without using the clock signal.
3 more elements
A method, comprising:
- determining whether a memory will enter a low power mode;
- putting the memory into the low power mode comprising stopping an external clock from being provided to the memory;
- detecting a wakeup event;
- sensing a measured value using a sensor circuit;
- adjusting a set of cold boot parameters for operating the memory according to the measured value to form current parameters;
- and
- operating the memory using the current parameters.
4 more elements
Dependencies are inferred from the claim text.