Noise Calculation in Electronic Communication System: The Noise Calculation in Electronic Communication System are namely, 1.Addition of Noise due to Several Sources: Let's assume there are two sources of thermal…
Transistor Buffer Circuit: The Fig. 15.12 shows the Transistor Buffer Circuit. In these Transistor Buffer Circuit, transistor is used as a switch. It can be switch ON or OFF with…
Interfacing ICs Articles: Features of 8255 Microprocessor: Here we see programmable peripheral interface (PPI), 8255, designed by Intel. It is a general purpose programmable I/O device used for parallel data…
Serial Communication Interface 8251: Most of the microprocessors are designed for parallel communication. In parallel communication number of lines required to transfer data depend on the number of bits to…
8255 Pin Diagram: Fig. 14.1 shows the 8255 Pin Diagram of Microprocessor. 8255 Block Diagram: Fig. 14.2 shows the internal 8255 block diagram of 8255 Pin Diagram Microprocessor. It consists…
8051 Addressing Modes: The 8051 Addressing Modes architecture supports several distinct physical address spaces. On - chip program memory On - chip data memory External program memory External data memory…
Arithmetic Instructions in 8051: The Arithmetic Instructions in 8051 of Basic Assembly Language Programming are ADD, ADDC, SUBB and DA The ADD instruction adds a byte variable with the accumulator,…
8051 Interrupts: The 8051 Interrupts provides 5 interrupt sources. The 8052 provides 6. These are shown in Fig. 12.28. The external Interrupts INT0 and INT1 can each- be either level-activated…