A PS/2 mouse is shown above with the cover removed. The ball (upper right) rolls two plastic X and Y axles with a slotted wheel at one end. The slotted wheel passes through a square slotted case containing an IR emitter and detector pair. When the wheel - PowerPoint PPT Presentation

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A PS/2 mouse is shown above with the cover removed. The ball (upper right) rolls two plastic X and Y axles with a slotted wheel at one end. The slotted wheel passes through a square slotted case containing an IR emitter and detector pair. When the wheel

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The ball (upper right) rolls two plastic X and Y axles with a slotted wheel at ... When the wheel rotates it generates pulses by interrupting the IR light beam. ... – PowerPoint PPT presentation

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Title: A PS/2 mouse is shown above with the cover removed. The ball (upper right) rolls two plastic X and Y axles with a slotted wheel at one end. The slotted wheel passes through a square slotted case containing an IR emitter and detector pair. When the wheel


1
A PS/2 mouse is shown above with the cover
removed. The ball (upper right) rolls two plastic
X and Y axles with a slotted wheel at one end.
The slotted wheel passes through a square slotted
case containing an IR emitter and detector pair.
When the wheel rotates it generates pulses by
interrupting the IR light beam. A microcontroller
(lower left) counts the pulses and sends data
packets containing mouse movement and button data
to the PC.
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Figure 11.1 Keyboard Transmission of a Scan Code.
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Figure 11.2 System Transmission of a Command to
PS/2 Device.
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Figure 11.3 Key Numbers for Scan Code.
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Figure 11.4 Keyboard UP1core
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Figure 11.5 Example design using the Keyboard
UP3core.
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The Mouse UP3core

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Figure 11.6 Transmission of Mouse Initialization
Command.
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Figure 11.7 Example Design Using Mouse UP3core
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