Connect Pin 9, Pin 10, Pin 11 of Multiplexer to Any port of Microcontroller
These are A B C pins of Multiplexer

Please let me know if you need any help

Originally Posted by mohlandmine

hi sir,
very very thanks about your attention
now iam connected it ,then
how i can program the micro to generate the A,B and C signals from the micro to make the multiplexer send the byte data to the micro
when ABC are ooo the D0 data will sent to micro and when ABC are 001 the data of D1 sent to the micro and soon until ABC are 111 the last pin D7 data will sent to micro and repeat again continuaslly,
how i can do this
THANKS Mr. rushi53

Hi,
Do u wish to send the data continuously ?
I mean without any delay in between
I will give u sample program

Suppose u have done connections as below
Pin A - Port 1.0
Pin B - Port 1.1
Pin C - Port 1.2

Code:

 ORG 0000H
               JMP START

START          MOV P1,#00H           ;This will turn on D0
               CALL DELAY
               MOV P1,#01H           ;This will turn on D1
               CALL DELAY
               MOV P1,#02H           ;This will turn on D2
               CALL DELAY
               MOV P1,#03H           ;This will turn on D3
               CALL DELAY
               MOV P1,#04H           ;This will turn on D4
               CALL DELAY               
               MOV P1,#05H           ;This will turn on D5
               CALL DELAY               
               MOV P1,#06H           ;This will turn on D6
               CALL DELAY               
               MOV P1,#07H           ;This will turn on D7
               CALL DELAY

HERE           JMP HERE               
               END 

And then write the program of delay as per your requirement
if you don't want to use delay then remove the "CALL DELAY" statements.

Let me know if you need any more help