INTERRUPT PROGRAMMING
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the RST for the TRAP?
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RST 4
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RST 4.5
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RST 5.5
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RST 7
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Explanation:
Detailed explanation-1: -The starting address of 8085 is known by itself the of the ISS as 4.5 * 8 = 0024H. Hence we name the TRAP pin equivalently as RST 4.5. It is referred as trap by INTEL. Non-maskable interrupt is TRAP whereas maskable is interrupt.
Detailed explanation-2: -RST 7.5 : It is a maskable, edge-triggered interrupt request input line. This interrupt is triggered at the rising edge of the signal. It has the highest priority among all maskable interrupts and the second priority among all interrupts. The interrupt vector location for this interrupt is 003CH.
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