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Why 8085 microprocessor's AD BUS go into high impedence state before switching as a data data bus?
Wiki User
∙ 14y ago
The 8085 microprocessor's AD bus goes into high impedance state before switching as a data input bus because you don't want two bus drivers driving the bus at the same time. You give the bus time to float between transfer of control, otherwise there will be large power transients at switchover, and you could damage the drivers.
Wiki User
∙ 14y ago
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