ORG 0000H
AJMP MAIN
ORG 002BH
INT:MOV TH2,#00H
MOV TL2,#00H
CPL P1.0
CLR TF2
RETI
ORG 0100H
MAIN:MOV TH2,#00H
MOV TL2,#00H
MOV RCAP2H,#00H
MOV RCAP2L,#00H
SETB ET2
SETB EA
MOV T2CON , #04H
JMP $
END