timer and counter

Which special function register play a vital role in the timer/counter mode selection process by allocating the bits in it?

• a)TMOD

• b)TCON

• c)SCON

• d)PCON

Which bit must be set in TCON register in order to start the 'Timer 0' while operating in 'Mode 0'?

• a)TR0

• b)TF0

• c)IT0

• d)IE0

What is the bit transmitting or receiving capability of mode 1 in serial communication?

• a. 8 bits

• b. 10 bits

• c. 11 bits

• d. 12 bits

Which pin in the shift register mode (Mode 0) of serial communication allow the data transmission as well as reception ?

• a. TXD

• b. RXD

• c. RB8

• d. REN

Which bits of opcode specify the type of registers to be used in the register addressing mode?

• a. LSB

• b. MSB

• c. both a & b

• d. none of the above

Which instruction should be adopted for moving an accumulator to the registerfrom the below mentioned mnemonics?

• a. MOV A, R_n

• b. MOV A, @ R_i

• c. MOV R_n, A

• d. MOV direct, A

Which operations are performed by the bit manipulating instructions of boolean processor?

• a. Complement bit

• b. Set bit

• c. Clear bit

• d. All of the above

Which data memory control and handle the operation of several peripherals by assigning them in the category of special function registers?

• a. Internal on-chip RAM

• b. External off-chip RAM

• c. Both a & b

• d. None of the above

Which register usually store the output generated by ALU in several arithmetic and logical operations?

• a. Accumulator

• b. Special Function Register

• c. Timer Register

• d. Stack Pointer

Which operations are performed by stack pointer during its incremental phase ?

• a. Push

• b. Pop

• c. Return

• d. All of the above