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Title
What is signal conditioning?
What steps have to be followed for interfacing a sensor to a micro controller 8051?
LM35 has how many pins?
Why Vref is set of ADC0848 to 2.56 V if analog input is connected to the LM35?
What is the function of 8255 chip?
Which pins of a micro controller are directly connected with 8255?
Find the control word for PA= out, PB= in, PCL=out, PCH=out (Mode0)?
Which pins are used to select the ports and the control register?
What is the value of the control register when RESET button is set to zero?
Why MOVX instruction is being used to access the ports of the 8255?
What is correct about the BSR mode from below?
How many pins of the 8255 can be used as the I/O ports?
DS12887 is a
What is the RAM space that a DS12887 have?
How many bytes of the ROM are there for the general purpose applications?
Which bits of the Register A are used for turning on the oscillator?
Which out of the following is correct about the SQW pin?
What is correct about the UIP pin of the register A?
What is the byte address where time, calendar, alarm address locations etc are kept?
Are the RAM locations of the DS12887 non volatile?
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