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Nor Flash

Anonymous
Not applicable

If the part is placed in QSPI mode, is it still capable of receiving legacy serial commands even though it's set to QSPI?

Reason: I would like to have 2 masters access the flash. One master communicates vias QSPI and the second master via serial. The signals would be muxed. The QSPI master is default but in case of failures, the serial master would mux the signals, disconnect the qspi master, and reprogram the golden image.

Thanks

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1 Solution
AS_36
Moderator
Moderator

Hi,

Thank you for contacting Cypress Community.

The Flash device will accept serial commands while set to QSPI mode. QSPI mode is selected by setting the CR1V[1] bit.

However, if you select QPI mode by setting the CR2V[6] bit, serial commands will not be accepted.

Thanks and Regards,

Apurva 

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2 Replies
AS_36
Moderator
Moderator

Hi,

Thank you for contacting Cypress Community.

The Flash device will accept serial commands while set to QSPI mode. QSPI mode is selected by setting the CR1V[1] bit.

However, if you select QPI mode by setting the CR2V[6] bit, serial commands will not be accepted.

Thanks and Regards,

Apurva 

View solution in original post

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Anonymous
Not applicable

Thank you for the info!

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