[Solved] 1 One Method Communicating Hardware Controllers Technique Called Memory Mapped O Specializ Q37285113

1. One method of communicating with hardware controllers isthrough a technique called memory mapped I/O. Specialized hardwareremaps memory locations to the device specific registers that canbe read or written by reading or writing specific memory locations.Suppose that a simple keyboard controller is accessed using memorymapped I/O. The locations of interest and their purpose is asfollows: 0x100 – Write only register. Writing a 1 to this locationstarts a read of the keyboard. 0x101 – Read only register. Thecontents of this location are set to 0 when the user starts akeyboard read (this is done atomically when a 1 is written to0x100). The register is set to 1 once the user has pressed a key.0x102 – Contains the keycode associated with the user’s keypressonce the read is complete. Write pseudocode to read a characterfrom the keyboard using polled IO.

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Answer to 1. One method of communicating with hardware controllers is through a technique called memory mapped I/O. Specialized ha… . . .