| CPC G06F 11/1068 (2013.01) [G06F 11/0772 (2013.01); G06F 11/0784 (2013.01)] | 20 Claims |
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20. An operation method of a storage device which includes a combo integrated circuit (IC) and a controller connected with the combo IC by a plurality of first channels, the operation method comprising:
determining, by the controller, whether a first event occurs, based on temperature data read from the combo IC;
determining, by the controller, whether a second event occurs, based on overvoltage protection data or overcurrent protection data received from a power management integrated circuit;
determining, by the controller, whether a third event occurs, based on an error correction fail code (UFCC) generated by an ECC block;
when at least one event among the first event, the second event, or the third event occurs, recording, by the controller, at least one event data corresponding to the at least one event in a memory of the combo IC;
in a first operation mode, outputting, by the combo IC, the at least one event data to the controller through the plurality of first channels based on a first command and an address received from the controller; and
in a second operation mode, under control of an external host, outputting, by the combo IC, the at least one event data to the external host through a plurality of second channels different from the plurality of first channels, based on a second command and the address received from the external host.
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