INTERRUPT PROGRAMMING
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Select Interrupt Mask
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Sorting Interrupt Mask
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Set Interrupt Mask
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None of the above
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Detailed explanation-1: -Set Interrupt Mask (SIM) – It is used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line. First the required value is loaded in accumulator then SIM will take the bit pattern from it.
Detailed explanation-2: -In 8085 Instruction set, SIM stands for “SetInterrupt Mask”. It is 1-Byte instruction and it is a multi-purpose instruction. The main uses of SIM instruction are – Masking/unmasking of RST7.5, RST6.5, and RST5.5.
Detailed explanation-3: -SIM stands for set interrupt mask which is handling the interrupts in 8085 microprocessor.
Detailed explanation-4: -There are 8 software interrupts in 8085, i.e. RST0, RST1, RST2, RST3, RST4, RST5, RST6, and RST7. Hardware interrupt − There are 5 interrupt pins in 8085 used as hardware interrupts, i.e. TRAP, RST7. 5, RST6. 5, RST5.