3.14. Keyboard/Mouse Interface, KMI

The Keyboard and Mouse Interfaces (KMI) are implemented with two PrimeCells incorporated into the FPGA. This is shown in Figure 3.32.

Figure 3.32. KMI block diagram

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The keyboard and mouse signals go to both J22 and J23. Use a splitter cable to use only one of the connectors. The normal I/O pins for J22 are used for the mouse and the normally unused pins are used for the keyboard. J23 uses the normal I/O pins for the keyboard. See also Keyboard and Mouse Interface, KMI and the ARM PrimeCell PS2 Keyboard Mouse Controller (PL050) Technical Reference Manual.

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