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Operating Modes of 8279 : The Operating Modes of 8279 provides 3 basic input modes : Scanned keyboard Scanned … Operating Modes of 8257 : The Operating Modes of 8257 can be programmed to operate in following …

Interfacing of 8279 with 8085 : Interfacing of 8279 with 8085 in I/O Mapped I/O: Fig. 14.68 shows the interfacing of 8257 with 8085 in I/O … 14.72 shows Interfacing 8259 with 8085 microprocessor system. 14.17 shows the Interfacing 8255 with 8086 Microprocessor and Interfacing 8255 … Interfacing 8255 with 8086 Microprocessor : Fig. 14.44 shows the Interfacing 8251 with 8085 in I/O mapped I/O … IC 1408 DAC Pin Diagram : The IC 1408 DAC Pin Diagram is an 8 bit R/2R … It can manage …įeatures of Intel 8279 Programmable Keyboard Display Interface : Features of Intel 8279 Programmable Keyboard Display Interface: The Intel 8279 is a general purpose programmable … It is a programmable …įeatures of 8259 Programmable Interrupt Controller : The Features of 8259 Programmable Interrupt Controller are 1. The Intel 8251A is …įeatures of 8255 Microprocessor : Features of 8255 Microprocessor – Here we see programmable peripheral interface (PPI), …įeatures of 8257 DMA Controller : The Features of 8257 DMA Controller are follows, 1. It …ĪDC0804 Family : The ADC0804 Family are ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive-approximation analog to …ĪDC0808 Pin Diagram : The ADC0808 Pin Diagram and ADC 0809 are monolithic CMOS devices with an …ĭAC0830 Digital to Analog Converter : The DAC0830 Digital to Analog Converter is an advanced CMOS 8-bit …įeatures of 8251 Microcontroller : The features of Features of 8251 Microcontroller are namely, 1. It consists of four main sections CPU …ĪDC 7109 Features : The ADC 7109 Features are namely, IC 7109 is a 12-bit dual slope A/D converter. It includes eight blocks : …Ĩ279 Block Diagram : Fig.

14.71 shows the internal 8259 Block Diagram. Data Bus (D0-D7) : These are bi-directional tri-state …Ĩ259 Block Diagram : Fig. 14.2 shows …Ĩ255 Programming and Operation : The 8255 Programming and Operation are follows Programming in Mode 0: The Ports A, B …Ĩ257 Pin Diagram : Fig. 14.1 shows the 8255 Pin Diagram of Microprocessor. In parallel communication number …Ĩ255 Pin Diagram : Fig. 8251 Serial Interface : Most of the microprocessors are designed for parallel communication.