Labels:data system | reckoner OCR: The 8088 Internally the 8088 Execution Unr is a full 6-bit 8086 No cycle- the eaters processor ive in just like herel Unit Cycle g-bit bus -eater Bus Interface The makes difficult for Prefetch queue the BIU to fetch instruction bytes into the prefetch quouo as quickly as they can be Cvcle-oater executed by the EU The 8088s extornal so the EU spends data bus is only8 time idling while bits wida ulimiting walting for the maximum date instructions transter rate to 1/2 PC bus be fetched that of the 8086 Momory (systom RAM ROM Dovicos (disks, keyboard display memory) display adapters timers, speaker, DMA channels Data and so on Machine code Cycle-eater TE idapter s insert man Dynamic RAM refresh is becal use access carried out by performing memor Amust be DMA read every 15 us. Ibetween.the 8088 ...
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