Matching of instructions with their functions

Q.  Match the following :

a. ISS ----------------------------- 1. Monitors the status of interrupt pin
b. IER ----------------------------- 2. Allows the termination of ISS
c. RETI --------------------------- 3. MCS-51 Interrupts Initialization
d. INTO -------------------------- 4. Occurrence of high to low transition level
- Published on 09 Nov 15

a. A-1, B-2, C-3, D-4
b. A-3, B-2, C-4, D-1
c. A-1, B-3, C-2, D-4
d. A-4, B-3, C-2, D-1

ANSWER: A-1, B-3, C-2, D-4

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