Signal Descriptions

A.10 Keyboard and mouse interface

The pinout of the KMI connectors J23 and J24 is shown in Figure A-12.

6

5

4

3

2

1

 

 

 

 

Figure A-12 KMI connector

Table A-8 shows signals on the KMI connectors.

 

 

 

 

Table A-8 Mouse and keyboard port signal descriptions

 

 

 

 

Keyboard (KMI0, J24)

Mouse (KMI1, J23)

Pin

 

 

 

 

 

Signal

Function

Signal

Function

 

 

 

 

 

1

KDATA

Keyboard data

MDATA

Mouse Data

 

 

 

 

 

2

NC

Not connected

NC

Not connected

 

 

 

 

 

3

GND

Ground

GND

Ground

 

 

 

 

 

4

5V

5V

5V

5V

 

 

 

 

 

5

KCLK

Keyboard clock

MCLK

Mouse clock

 

 

 

 

 

6

NC

Not connected

NC

Not connected

 

 

 

 

 

ARM DUI 0224I

Copyright © 2003-2010 ARM Limited. All rights reserved.

A-15

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ARM ARM DUI 0224I manual Keyboard and mouse interface, Table A-8 Mouse and keyboard port signal descriptions