Signal Descriptions
ARM DUI 0224I Copyright © 2003-2010 ARM Limited. All rights reserved. A-15
A.10 Keyboard and mouse interface

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

Figure A-12 KMI connector

TableA-8 shows signals on the KMI connectors.

1
2
3
4
5
6
TableA-8 Mouse and keyboard port signal descriptions
Pin
Keyboard (KMI0, J24) Mouse (KMI1, J23)
Signal Function Signal Function
1KDATA Keyboard data MDATA Mouse Data
2 NC Not connected NC Not connected
3GND Ground GND Ground
45V 5V 5V 5V
5KCLK Keyboard clock MCLK Mouse clock
6 NC Not connected NC Not connected