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MICROPROCESSORSWhich protocol standard of serial communication specifies the bi-directional and half-duplex form of data transmission by allowing various numbers of drivers and receivers in bus configuration? (i) RS232 (ii) RS2485 (iii) RS422 (iv) RS42320212mMICROPROCESSORSWhich serial modes possess the potential to support the multi-processor type of communication? (i) Modes 0 & 1 (ii) Modes 1 & 2 (iii) Modes 2 & 3 (iv) All of the above20202mMICROPROCESSORSWhich pin of RS232 connector is used for Transmit Data (TXD)? (i) Pin 2 (ii) Pin 1 (iii) Pin 4 (iv) Pin 320242mMICROPROCESSORSDiscuss the RS232 communication interface with neat diagrams.20257m