Which interrupt in 8085 Microprocessor is unmaskable?
2017
Which interrupt in 8085 Microprocessor is unmaskable?
Answer: C. TRAP — The 8085 microprocessor has five interrupt sources: TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR. TRAP is the only non-maskable interrupt because it cannot be…
- A.
RST 5.5
- B.
RST 7.5
- C.
TRAP
- D.
Both (a) and (b)
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Correct answer: C
The 8085 microprocessor has five interrupt sources: TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR. TRAP is the only non-maskable interrupt because it cannot be disabled by software instructions like SIM, whereas RST 5.5 and RST 7.5 are maskable.
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