textbook

Question

consider a 12 bit physical address and a direct-mapped cache with 64 blocks and each block has a size of 16 bytes. To which block number does the byte address 1200 map?

Comments

Tag bits are used to map one of the possible blocks that can be mapped to one cache block in direct mapped cache .

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Physical address given is 12 bits out of which Tag = 2 bits, Cache offset= 6 bits, Word offset = 4 bits.

Block number (1200): 010010110000 which is 11. 

Question is asking given Block is mapped to which cache block. 

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ans is 11