What is the

function of the SCON register?

Who controls the timer1 especially when it is configured as a timer in

mode'0', where gate and TR1 bits are attributed to be '1” in TMOD register ?

When 8051 wakes up, then 0X00 is loaded to the

register

Which special function register play a vital role in the timer/counter mode

selection process by allocating the bits in it?

What is the counting rate of a machine cycle in correlation to the

oscillator frequency for timers?

Choose

the correct option based on true /false conditions of following statement with

respect to 8051 microcontrollers?

A) It has 32 number of general purpose registers

B) One machine cycle comprises of 6 clock pulses from crystal

oscillator

C) Address bus can point out upto maximum of 4096 memory

locations

D) 8051 has a dedicated flag bit “Z” in PSW register to indicate

result is zero or not

Which among the below

mentioned sequence of program instructions represent the correct chronological

order for the generation of 2kHz square wave frequency?

1. MOV TMOD, 0000

0010 B