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The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
book

The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition

by Lyla B. Das
May 2024
Intermediate to advanced content levelIntermediate to advanced
665 pages
23h 2m
English
Pearson India
Content preview from The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
THE HARDWARE STRUCTURE OF 8086 211
Example 6.1
What is the duration of the bus-cycle in an 8086 based microcomputer, if the clock frequency
is 12 MHz and three wait states are inserted?
Solution
e period of a 12 MHz microprocessor is T = 1 / f = 83 ns.
us, the duration of the bus-cycle, without any wait-states is given by;
T
bus-cycle
= 4* T = 4* 83 ns = 332 ns.
Duration of the wait-states is, T
W
= 3* T = 249 ns.
So the extended bus-cycle T
bus-cycle
+ T
W
= 332 + 249 = 581 ns.
6.2.3 | Write Machine Cycle
e steps in a write machine cycle are (refer Section 0.2.5):
Place on the address bus, the address of the location to which data is to be w ...
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Publisher Resources

ISBN: 9781282663169