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Define the DMA controller interface.
A DMA controller interfaces along with a few peripherals which may request DMA. The controller chooses the priority of simultaneous DMA requests communicates along with the peripheral and the CPU, and gives memory addresses for data transfer. DMA controller generally used with 8088 is the 8237 programmable device.
The 8237 is actually a special-purpose microprocessor. Normally this appears as part of the system controller chip-sets. The 8237 is a 4-channel device type. All channels are dedicated to an exact peripheral device and able of addressing 64 K bytes section of memory.
8237 microprocessor
Semiconductor Equations The semiconductor equations that are relating these variables are shown below: Carrier density: n = n i exp (E FN - E i / KT) (1)
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Define the term Paging Unit. Paging Unit: The paging mechanism functions along with 4K - byte memory pages or along with a new extension obtainable to the Pentium with 4M byt
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Problem: Jyoti Textile is considering whether to add a new product to its range. Machinery costing $280,000 would have to be bought at the start of the project (Year 0). The pr
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What do you understand by DB assembler directive? DB (Define Byte): The DB directive explains by a byte-type variable (that is a variable that occupies one byte of memo
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