APPARATUSES AND METHODS FOR ARBITRATING A SHARED TERMINAL FOR CALIBRATION OF AN IMPEDANCE TERMINATION

摘要

An arbitration system and method is disclosed. The apparatus includes first and second memory devices, and a resistor coupled in common to the first and second memory devices, the first memory device including a first calibration circuit configured to perform, when activated, a first calibration operation based on the resistor and a first arbiter configured to activate the first calibration circuit responsive, at least in part, to an assertion of a first command or keep the first calibration circuit inactive irrespective of the assertion of the first command.

主权项

1. An apparatus comprising:
first and second memory devices; and a resistor coupled in common to the first and second memory devices; the first memory device comprising a first calibration circuit configured to perform, when activated, a first calibration operation based on the resistor and a first arbiter configured to activate the first calibration circuit responsive, at least in part, to an assertion of a first command or keep the first calibration circuit inactive irrespective of the assertion of the first command; and the second memory device comprising a second calibration circuit configured to perform, when activated, a second calibration operation based on the resistor and a second arbiter configured to activate the second calibration circuit responsive, at least in part, to an assertion of a second command or keep the second calibration circuit inactive irrespective of the assertion of the second command.