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82C55 Programmable Peripheral Interface * * Micro processor & assembly language * Protocols 3 methods to transfer data from one device to other exists in micro computers.
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Chapter 11 Basic I/O Interface Introduction : is great at solving problems but if can t communicate with outside, it is of little worth outline some of basic ...
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Interface 8088 I/F with basic IO, RAM and 8255 Topics Timing diagram Address Bus, R/W, Data Memory Map I/O Address Decoding CPU is addressable lager than devices.
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8255 PPI PPI Programmable Peripheral Interface * * Handshake status check i/p port Suppose Port B is in mode 1 status check i/p Processor reads bit 1 (IBF) of Port C ...
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peripheral interface adapters made to be compatible with families of mP's ... A nested DO...LOOP awaits for the user to hit a key on the PC keyboard and loops ...
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