Make control word when the ports of 8255A are to be used in mode 0 with all the ports as Input port
SIKSHAPATH Latest Questions
Comment on the direction of the port for the following CWR values in 8255 80H 8A H 8B H 92H 98 H
The 8255 operates in 2 modes,Answer the following wrt 8255 modes Which bit of control word register is responsible for mode selection Role of D5 and D6 of CWR Value of CWR for setting PC3 Value o fD3,D2,D1 to select PC4 Value o fD3,D2,D1 to ...
Write down the mode 0 control words of 8255 for the following two cases: (a) Port A = Input port, Port B = not used, Port CU = Input port and Port CL = Output port. (b) Port A = Output port, ...
Write initialisation instructions for the 8255A to set up: PORT A as an output port in Mode 0 PORT B as an output port in Mode 1 for interrupt I/O PORT C (Upper) as an output port in Mode 0.
The following data is given Age (in years): Below 10, below20, below30, below40,below50, below60, below70, below 80 and No. of persons: 2,5,9,12,14,15,15.5,15.6 Find mean , median and mod