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The reset command with the two unlock cycles which you're referring to is used as a "Write Buffer Abort Reset command" for the GL-S case.
This command (0xAA + 0x55 + 0xF0) will clear the status register and return to normal operation.
I have just tested both commands on real silicon and they had the same effect.
So you can use both commands for a reset.
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Cypress Semiconductor Corp.
Thank you for your answer. I understand it.