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SERIAL INTERFACE
Once of the 8051's many powerful features is its integrated DART, known as a serial port. The essential operation of a DART is to perform parallel to-serial conversion for output data, and serial-to parallel conversion for input data. The fact that the 8051 has an integrated...
THE PROGRAM STATUS WORD
Where:
Z is the zero flag. It is set when the result of an operation a zero.
N is the negative flag. It is set to the algebraically correct sign of the result regardless of overlows.
V is the overflow. flag. It is set it an overflow occurs.
VT is the overflow trap...
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