"8042" PS/2 Controller: Difference between revisions
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→PS/2 Controller IO Ports: port 61 has no keyboard related functions |
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The PS/2 Controller itself uses 2 IO ports (IO ports 0x60 and 0x64). Like many IO ports, reads and writes may access completely different internal registers.
Historical note : The PC-XT PPI had used port 0x61 to reset the keyboard
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