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Describe all pins of 8254 programmable interval timer as shown in the figure also explain all the modes with timing diagram How to differentiate between

  1. Describe all pins of 8254 programmable interval timer as shown in the figure also explain all the modes with timing diagram

image text in transcribed

  1. How to differentiate between address / data lines of the microprocessor 8088/8086 with

the help of diagram.

  1. What is the purpose of the demultiplexed BHE signal on the 8086 microprocessor
CLKO Dr.De DATA BUS BUFFER COUNTER 0 GATE O OUTO AD WR CLK 1 READI WRITE LOGIC INTERNAL BUS COUNTER AD A GATE 1 OUT 1 CS CLK 2 CONTROL WORD REGISTER COUNTER 2 GATE 2 OUT 2

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