| 摘要 |
A flash memory apparatus is provided. In one embodiment, the flash memory apparatus with a plurality of operation states is coupled to a host and includes a controller having an engine and a register array. A state machine logic circuit of the engine is provided for transition of the operation states and the register array provides state transition information. When a command is received from the host, the engine obtains the state transition information from the register array according to a first operation state and determines whether the valid command is one of a plurality of valid commands corresponding to the first operation state. The state machine logic circuit determines transition to the operation states according to the state transition information. The transition of the first operation state to the second operation state is performed in response to the valid command.
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