which port in 8051 has dual functions like address/data bus ?, port 3, port 1, port 2, port 0, after reset,what is the initial value of stack pointer (sp) ?, 00H, 07H, FFH, 08H, The 8051can operate it's serial port in how many modes ?, 2, 3, 4, 5, The 8051 is a ____________ microcontroller, 4 bit, 8 bit, 16 bit, 32 bit, what is function of port 3 in 8051, I/O only, Data bus, address bus, Alternate functions, An embedded applications requires real time response. Why might you prefer a microcontroller over a microprocessor, integrated peripherals reduce design complexity and improve speed, microprocessor are cheaper, microcontroller consume more power, microprocessor offer better graphics, The pin PSEN(program store enable) is used for:, Enabling external program memory, resetting the 8051, latching data, selecting on-chip ROM, which SFR control the serial communication in 8051 ?, TMOD, TCON, SCON, PCON, which pin enables external program memory access?, RST, EA, PSEN, XTAL 1, if you need to access 32 KB of external RAM, which pin will carry the higher bite of address?, Port 0, port 1, port 2, port 3
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