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Interfacing ROM with 80386ex processor

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mkbhatti

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80386ex

Dear Fellows, i have a problem in reading and writing flash memory (AT29c010A) simultaneously.
i-e i want to read instructions from ROM at lower addresses and want processor to write data (being provided by instruction) back into Flash at higher addresses. can any one guide me through?


thanking you,
khurram
 

AT29c010A is not Simultaneous Read/Write Flash Memory, therefore you need other Flash ROM for executing programming routine, or need copy Flash programming routine to RAM, and execute it from RAM.
 

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