APPARATUSES, SYSTEMS, AND METHODS FOR MEMORY REFRESH WATCHDOG

APPARATUSES, SYSTEMS, AND METHODS FOR MEMORY REFRESH WATCHDOG

Apparatuses, systems, and methods for a memory refresh watchdog circuit. A memory may include a temperature sensor which sets a value of a refresh multiplier in a mode register. The memory includes a refresh watchdog circuit which determines an expected rate of refresh commands based on a current va...

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Hauptverfasser: Boehm, Aaron P, Bonitz, Rainer
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Bonitz, Rainer
description Apparatuses, systems, and methods for a memory refresh watchdog circuit. A memory may include a temperature sensor which sets a value of a refresh multiplier in a mode register. The memory includes a refresh watchdog circuit which determines an expected rate of refresh commands based on a current value of the refresh multiplier. The refresh watchdog circuit measures a rate at which refresh commands are received from a memory controller and compares the measured rate to the expected rate. For example, the refresh watchdog circuit may set a threshold based on the value of the refresh multiplier. The refresh watchdog circuit may change a count value each time a refresh command is received and compare the count value to the threshold. If the count value is less than the threshold, then the refresh watchdog circuit may determine that not enough refresh commands have been received.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title APPARATUSES, SYSTEMS, AND METHODS FOR MEMORY REFRESH WATCHDOG
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