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Address decoding using simple NAND gate Using partial memory addressing spaceFFFFFAddr[19:0]37FFF32KB Lowest address 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 03000000000Highest address0 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1These 5 address linesare not changed. Theyset the base addressThese 15 address lines selectone of the 2 15 (32768) locationsinside the RAMsAddr[14:0]32KBAddr[19]Addr[18]Addr[17]Addr[16]Addr[15]IO/MCS
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