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Hello,
Micron W29DW Flash has reset command (F0) of 1-Cycle and 3-cycle.
1-cycle:
Adder | Data
x | F0
3-cycle:
555 | AA
2AA | 55
x | F0
Now, customers are considering changing from Micron to Cypress's S29GL128S.
According to the data sheet, GL-S supports only 1-cycle reset command (F0).
If 3-cycle reset command is issued, will GL-S Flash execute reset?
Or is this command ignored?
Best Regards,
Naoaki Morimoto
Solved! Go to Solution.
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- reset
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Hello Morimoto-san,
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.
Thanks!
Best regards,
Bacem
----
Bacem Daassi
Customer Application Engineering
Cypress Semiconductor Corp.
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Hello Morimoto-san,
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.
Thanks!
Best regards,
Bacem
----
Bacem Daassi
Customer Application Engineering
Cypress Semiconductor Corp.
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Hello Bacem-san,
Thank you for your answer. I understand it.
Best Regards,
Naoaki Morimoto