Ps/2 Keyboard And Mouse Connector (Kbdmse) (J15) - Kontron KTQ77/Flex User Manual

KTD-N0848-B

6.3 PS/2 Keyboard and Mouse connector (KBDMSE) (J15)

Attachment of a PS/2 keyboard/mouse can be done through the pinrow connector KBDMSE (J15).
Both interfaces utilize open-drain signalling with on-board pull-up.
The PS/2 mouse and keyboard is supplied from SB5V when in standby mode in order to enable
keyboard or mouse activity to bring the system out from power saving states. The supply is provided
through a 1.1A resettable fuse.
PIN Signal
1 KBDCLK
2 KBDDAT
3 MSCLK
4 MSDAT
5 5V/SB5V
6 GND
Signal Description – Keyboard & and mouse Connector (KBDMSE).
Signal Description
MSCLK Bi-directional clock signal used to strobe data/commands from/to the PS/2 mouse.
MSDAT Bi-directional serial data line used to transfer data from or commands to the PS/2 mouse.
KDBCLK Bi-directional clock signal used to strobe data/commands from/to the PC-AT keyboard.
Bi-directional serial data line used to transfer data from or commands to the PC-AT
KBDDAT
keyboard.
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Type Ioh/Iol
IOD /14mA
IOD /14mA
IOD /14mA
IOD /14mA
PWR -
PWR -
Internal Connectors
Pull
Note
U/D
2K7
2K7
2K7
2K7
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KTQ77/Flex Users Guide