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4.4.55 PS2Keyboard component

This section describes the PS2Keyboard component.

PS2Keyboard - about

This component translates a stream of key press information into appropriate PS/2 serial data.

The key press data stream must be provided from another component such as a visualization component.

This is a LISA+ component.

PS2Keyboard - ports

This section describes the ports.

Table 4-145 PS2Keyboard ports

Name Protocol Type Description
keyboard KeyboardStatus Slave Receives keyboard input from, for example, the Visualisation component
clk_in ClockSignal Slave Drives the PS/2 clocking rate, typically 1MHz
ps2 PS2Data Master Connection to the PS/2 controller, for example, the PL050_KMI
Related reference

PS2Keyboard - verification and testing

This component passes tests as part of the VE example system by using VE test suites and by booting operating systems.

PS2Keyboard - performance

ARM® expects this component to have little effect on the performance of PV systems. However if it is connected to the Visualisation component, then the performance of the component depends on that of the visualization.

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