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Explain the function of the pins PSEN and EA of 8051.
PSEN: PSEN stands for program store enable. In 8051 based system in which an external ROM holds the program code, this pin is linked to the OE pin of the ROM.
EA :EA stands for external access. When the EA pin is linked to Vcc, program fetched to addresses 0000H through 0FFFH are directed to the internal
ROM and program fetches to addresses 1000H by FFFFH are directed to external ROM/EPROM. When the EA pin is grounded, all addresses fetched by program are directed to the external ROM/EPROM.
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Define Sampling below the Nyquist Rate? A further reduction of the sampling frequency will reason one sample to be taken each period. The Case 3 plot depicts the effect of this
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Importance of Microprocessor Now few questions may arise in one mind that when advance processor like Pentium IV are available in market why we are learning 8035 mic
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explain why entropy of a gas increases with volume and tempearture
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