Pin diagram of 16550 UART: The 16550 UART (Universal Asynchronous Receiver/Transmitter) is an integrated circuit which is used for the interfacing for serial communications. Usually, it is used to implement the serial port for personal…
Pin Diagram of 8250 UART: Pin Diagram of 8250 UART - The UART stands for Universal Asynchronous Receiver Transmitter. The UART is used in parallel-to-serial and serial-to-parallel conversions. Actually, UART receives data bytes from the…
Bus Interface in Microprocessor: Bus Interface in Microprocessor - A microcomputer consists of a set of components such as CPU, memory, I/O device and these components communicate with each other to perform a specified task.…
Internal Architecture of 8275 CRT Controller: The 8275 programmable CRT controller is a single-chip device that generates all the signals which are used for interfacing a microprocessor system. The main function of the 8275 CRT…
8253 Programmable Interval Timer: 8253 Programmable Interval Timer - In the process control system or automation industry, a number of operations are generally performed sequentially. Between two operations, a fixed time delay is specified. In…
8255A Programmable Peripheral Interface: 8255 is a programmable peripheral interface IC and is a multiport input/output device. This is a general-purpose programmable I/O device, which may be used with many different microprocessors. There are 24…
8259A Programmable Interrupt Controller: 8259A Programmable Interrupt Controller - Microprocessor-based system design requires many I/O devices such as keyboards, displays, sensors and other components. These devices should receive servicing in an efficient manner from the…
80387 Numeric Data co-processor: The 80387 numeric data co-processor is an advanced version of 80287 and it is a high performance numeric data processor and it is specifically designed to operate with 80386 CPU. The…
Pin diagram of 80287 co-processor: The pin diagram of 80287 co-processor is shown in Fig. 7.53 and the function of pins are given below: D15-D0 The D15-D0 is used as a 16-bit data bus which…
80287 Numeric Data Processor: The 80287 Numeric Data Processor is an advanced version of its predecessor, the 8087, and it is specially designed to operate with the processor 80286. The 80287 provides about 70 additional…
