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Nor Flash

thanc_4239586
New Contributor

I've found a SPI NOR Cypress S25fs512s Verilog Model (https://www.cypress.com/verilog/s25fs512s-verilog ) and I get confuse: Spec says that

   Read only bits are never modified and the related bits in the WRAR command data byte are ignored without setting a program or erase error indication (P_ERR or E_ERR in SR1V). Hence, the value of these bits in the WRAR data byte do not matter.

However in the model, I see that:

pastedImage_4.png    

SR1_V[7] is SRWD bit, it is a Volatile copy of SRWD_NV and a Read only bit, but in above code, it is always updated with data programed by WRAR command. If there is a mistake here ?

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BushraH_91
Moderator
Moderator

Hello

Attached is the updated verilog model. pw is sse.

Thank you

Regards,

Bushra

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