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is this possible to use same serial port of 89s52 for different purposes?

In my project i want to interface a GSM modem and 24c02C i.e EEPROM (I2C based)to microcontroller.
so now i am not understanding whether can i use same Rx-Tx pins to interface microcontroller (89s52) to EEPROM and GSM modem as well?? if not then is there any other microcontroller of AT89cxx/AT89sxx family with 2 serial ports?
and which will support embedded c and assembly too!

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  • Hello sir,
    I have the same confusion.. i.e. can we use any PINS to interface EEPROM to controller using I2C.
    If it is possible then he can do it with AT89C51 also, can't he?
    i.e. He can interface his gsm modem using serial port available an he can use other pins to interface EEPROM and in that case he can use burner kits to burn his IC.

    Please correct me if i am wrong..

    Thank you :)

Reply
  • Hello sir,
    I have the same confusion.. i.e. can we use any PINS to interface EEPROM to controller using I2C.
    If it is possible then he can do it with AT89C51 also, can't he?
    i.e. He can interface his gsm modem using serial port available an he can use other pins to interface EEPROM and in that case he can use burner kits to burn his IC.

    Please correct me if i am wrong..

    Thank you :)

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