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KTD-N0882-H Page 41 Internal Connectors

KTQ87/KTH81 Users Guide

7.4 PS/2 Keyboard and Mouse connector (KBD/MSE) (PS2)

Attachment of a PS/2 keyboard/mouse can be done through the pinrow connector KBD/MSE (Flex boards

only). 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 Type Ioh/Iol Pull U/D Note

1 KBDCLK IOD /14mA 2K7

2 KBDDAT IOD /14mA 2K7

3 MSCLK IOD /14mA 2K7

4 MSDAT IOD /14mA 2K7

5V/SB5V

PWR

6 GND PWR - -

Signal Description – Keyboard & and mouse Connector (KBDMSE).

Available cable kit:

PN 1053-2384 Bracket Cable 6-Pin to PS2-Kbd-Mse

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.

KBDDAT Bi-directional serial data line used to transfer data from or commands to the PC-AT keyboard.

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