How an interleaver works?

Answer 1

•Interleaving works by dividing the system memory into multiple blocks. The most common numbers are two or four, called two-wayor four-way interleaving, respectively. Each block of memory is accessed using different sets of control lines, which are merged together on the memory bus. When a read or write is begun to one block, a read or write to other blocks can be overlapped with the first one. The more blocks, the more that overlapping can be done. As an analogy, consider eating a plate of food with a fork. Two-way interleaving would mean dividing the food onto two plates and eating with both hands, using two forks. (Four-way interleaving would require two more hands. :^) ) Remember that here the processor is doing the "eating" and it is much faster than the forks (memory) "feeding" it (unlike a person, whose hands are generally faster.)