8051 IS A ---------- BIT MICROCONTROLLER, 8 , 16, 32, 64, TIMER 0 IS A -------- BIT REGISTER, 8 , 16, 32, 64, 8051 HAS AN ----------- ADDRESS LINES, 16, 8, 32, 64, 8051 HAS AN INTERNAL MEMORY OF ----------------- BYTES, 128K, 64K, 32K, 128, PROGRAM COUNTER IS A ----------- BIT REGISTER, 8, 32, 16, NONE, Program associated with interrupt is called ----------------, Interrupt Enable, Interrupt Priority, Interrupt Service Routine, all are correct, none, option a and b , TMOD register is used to ----------------------------------, Specify the modes of Operation, Control the Timer/Counter Operation, Both are Correct, none, In timer Mode 2 is referred as , 13 bit timer, 8 bit auto reload, 16 bit timer, Split Timer, which bit of IE register is used to enable TXD/RXD interrupt?, IE.D2, IE.D3, IE.D5, IE.D4, After RETI instruction is executed then the pointer will move to which location in the program?, next instruction of the interrupt vector table, to the first instruction of ISR, to a fixed location in memory called interrupt vector table, immediate next instruction where interrupt is occured, What should be done if we want to double the baud rate?, Change a bit of the TMOD register, Change a bit of PCON Register, Change a bit of the SCON register, Changing a bit of SBUF registter, What is the function of SCON register?, To program start bit,stop bit, and data bits of framing, to control SBUF and SMOD registers, to control SMOD registers, none.

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