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What is Features and Modes of 8255 Microprocessor about?

The 8255 microprocessor is a programmable peripheral interface device used for parallel data transfer. It has three 8-bit ports (Port A, Port B, Port C) that can be programmed to operate in different modes. The ports can be configured as input or output ports in simple I/O mode or interrupt-enabled I/O mode with handshaking. Individual bits of Port C can also be set or reset using the bit set/reset mode. Control words written to the control register determine the function and operating mode of the ports.

Author

satyanarayana12

Language

EN