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8088 Intel Microprocessor Sample Questions & Answers
Wednesday, May 12, 2010
Address Latch Enable pin (ALE) tutorial
Based on the following ALE waveform, what are the data that flow through AD0-AD7 at cycle T3 until T4.
AD-AD7 can carry both Address and Data type of data. ALE is the pin that indicate what is the type of data that currently flow through AD-AD7 pin.
ALE = 0 ( address latch disabled --> data )
ALE = 1 ( address latch enabled --> address )
At cycle T3 until T4 ALE=0 therefore the data that flowing through AD0-AD7 is Data.
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