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Write the instructions needed to program the 8251 for working in the following mode (Assume the address of the control port is 80H) : (a)

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Write the instructions needed to program the 8251 for working in the following mode (Assume the address of the control port is 80H) : (a) Asynchronous mode, 7 data bits, odd parity, X16 clock, 2 stop bits. (b) Asynchronous mode, 8 data bits, no parity, X16 clock, 1 stop bit. (c) Synchronous mode, 7 data bits per character, X64 clock

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