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.
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a) Shift a 16 -bit number to left by1-bit b)Shift a 16-bit number to left by2-bits. please give their instruction codes
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, ...
Elaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Elaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Make control word when the ports of 8255A are to be used in mode 0 with all the ports as output port