CPC G11C 7/1096 (2013.01) [G11C 7/1045 (2013.01); G11C 7/1057 (2013.01); G11C 7/1069 (2013.01); G11C 7/1084 (2013.01)] | 21 Claims |
1. A method of operating a host device, the method comprising:
transmitting, by the host device, a request command for performing an eye-opening monitor (EOM) operation to a memory device;
transmitting, by the host device, at least one parameter for performing the EOM operation to the memory device;
transmitting, by the host device, pattern data for performing the EOM operation to the memory device; and
receiving, by the host device, a first response signal including a result of the EOM operation performed based on the at least one parameter and the pattern data from the memory device,
wherein the EOM operation is performed based on a comparison between a main path signal, which corresponds to a signal received from the host device and restored at the memory device, and an EOM path signal, which corresponds to a signal received from the host device and restored using an offset value at the memory device, and
wherein the at least one parameter for performing the EOM operation includes a parameter that defines the offset value.
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