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Module 2: The 8051 Architecture

20237m

What are the special function registers associated with the interrupt module of 8051?

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SFRs Associated with Interrupt Module (as Q46/118)

IE A8H (enable bits EA,ES,ET1,EX1,ET0,EX0), IP B8H (priority PS,PT1,PX1,PT0,PX0), TCON 88H (IE1/IT1,IE0/IT0,TF1/TR1,TF0/TR0), SCON 98H (TI/RI). For 8052, additional T2CON etc. Vectors at 0003H-0023H.

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