SEMC SRAM interface_Higher address A[M : 16]
12-15-2021
06:40 PM
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ShiXiang
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product: I.mxrt 1170 series
For the SRAM write/read in SYNC mode (ADMUX), just wonder is it possible to mask the higher address bit, A[M : 16] and UB&LB, means not to use and free up my address pin, so that I can connect them to extra GPIOs?
My SRAM application only need A0-15. (which share together with D0-15)
Can the software call function/register support on masking or is the software/register adjustable? For masking the higher address bit, A[M : 16] and UB&LB, while using SRAM write/read in SYNC mode (ADMUX) . Thank you.
Or if we did not call the A[M : 16] and UB&LB, is it means we mask the features and free up those GPIOs?
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12-16-2021
11:44 PM
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NXP TechSupport
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Hi @ShiXiang ,
Yes, In ADMUX mode, you can take unused address pins as gpio or other function.
Regards,
Jing
