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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.