By: Masud-ul-Hasan
6
IE : Interrupt Enable Register (0A8H)
• (1 = Enabled, 0 = Disabled)
•- EA : Global interrupt enable/ disable.
•- ES : Serial port interrupt enable/ disable.
•- ET1 : Timer 1 interrupt enable/ disable.
•- EX1 : External interrupt 1 enable/ disable.
•- ET0 : Timer 0 interrupt enable/ disable.
-- EX0 : External interrupt 0 enable/ disable.
-e.g., Timer 1 interrupt can be enabled as follows:
-    SETB EA ; Enable global interrupt bit
-    SETB ET1 ; Enable Timer 1 interrupt
-Or    MOV IE, #10001000B
EA ---- ---- ES ET1 EX1 ET0 EX0