WAIT/READY signal for NOR/PSRAM

[sugiyamatoshihi]

Hi, 

I have a question about  SRAM interface.

There is a register 24.5.1.2 Module Control Register (MCR).

There is a description WPOL0  WAIT/RDY# polarity for NOR/PSRAM, but  there is no WAIT/READY pin  in  table 24.4.3 Pin Mux in SEMC.

Is it possible to use WAIT/READY for SRAM?  if possible, which pin is assigned to WAIT/READY?

Best Regards,

Sugiyama

[jorge_a_vazquez]

Hi Toshishisa Sugiyama

Could you clarify what Chip are you using? in the Reference MAnual for the IMXRT1050, in the table 24.4.3 you can find the

SEMC_RDY pin. For SRAM it is the pin A27/CS6

Hope this could help

Have a great day,
TIC

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[sugiyamatoshihi]

Hi,

Thank you for your answer.

I'm sorry I missed device name. It is regarding to i.MXRT1050.

Does it means SEMC_RDY pin can be used for NOR/SRAM READY pin?

However, 24.5.1.3 IO Mux Control Register (IOCR) , MUX_RDY is like below.  It is assigned Address pin bit 27 NOR/PSRAM not ready pin. 

Best Regads,

Sugiyama