lecture18 - Could result in huge worst-case path. Very...

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Using memories What values should we apply if we want to write 0x12 to memory location 0x044? What values should we apply if we want to read memory location 0x44?
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Cells
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memory array 256bits (16x16) _ _ _ _ _ d e c o d e r ______mux/demux OE’ CS’ WE’ ________ ________ ________ 4-bit words…
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What does it mean to minimize combinational logic? It could mean a lot of things. Minimize gate delays Well technically speaking sum-of-products and products-of-sums is minimal (2 gate delays) even canonical sum-of-products and product-of-sums have only two gate delays. Minimize number of gates?
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Unformatted text preview: Could result in huge worst-case path. Very complex. Probably would want to minimize # gate inputs anyways Lets aim lower Restrict ourselves to 2-level logic Sum-of-products for now, well do product-of-sums later. Minimize the number of gates and number of inputs it turns out Motivational examples #1 =abc + abc + abc #2 =abc + acd+bcd ab/c 00 01 11 10 1 ab/c 00 01 11 10 1 ab/c 00 01 11 10 1 ab/c 00 01 11 10 1 ab/c d 00 01 11 10 00 01 11 10...
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lecture18 - Could result in huge worst-case path. Very...

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