System including master device and slave device, and operation method of the system

Abstract

A system includes: a master device; and a slave device including a temperature variation measuring circuit for measuring a temperature variation amount of the salve device for a predetermined time. The slave device transfers temperature information to a master device when a temperature variation amount for the predetermined time is equal to or greater than a threshold value, the temperature information representing that the temperature variation amount for the predetermined time is equal to or greater than the threshold value. The master device determines a temperature of the slave device in response to the temperature information, and controls the slave device based on the determined temperature of the slave device.

1 - 8 . (canceled) 
     
     
         9 . A system, comprising:
 a master device; and   a slave device including a voltage variation measuring circuit suitable for measuring a voltage variation of the salve device for a predetermined time,
 wherein the slave device is suitable for transferring a signal to the master device indicating that the voltage variation for the predetermined time is equal to or greater than a threshold value. 
   
     
     
         10 . The system of  claim 9 , wherein the master device is suitable for determining a voltage of the slave device in response to the voltage information, and controlling the slave device based on the determined voltage of the slave device. 
     
     
         11 . The system of  claim 9 , wherein the voltage variation measuring circuit includes:
 a voltage sensor suitable for measuring a voltage applied to the slave device;   a storage suitable for periodically storing voltages sensed by the voltage sensor, and   a variation amount calculator suitable for deciding whether a voltage difference between a voltage of a previous period stored in the storage and a voltage of a present period is equal to or greater than the threshold value.   
     
     
         12 . The system of  claim 9 , further comprising:
 a line provided between the slave device and the master device, suitable for transferring the voltage information from the slave device to the master device.   
     
     
         13 . The system of  claim 9 , wherein the slave device includes a memory device, and the master device includes a memory controller. 
     
     
         14 - 19 . (canceled)