
KTD-00774-G KTUS15/mITX Page 25 of 84
4.4 Keyboard and Mouse connectors
Attachment of a keyboard or PS/2 mouse adapter can be done through the MINI-DIN (KBD) connector or via
the pinrow (KBDMSE) connector. All interfaces utilize open-drain signaling with on-board pull-up.
Note: PN 821091 Keyboard/Mouse cable splitter cable kit is available for connecting Keyboard and Mouse
via KBD connector.
The mouse and keyboard is supplied from SB5V when in standby mode in order to via keyboard or mouse to
make the system wake up from power saving states. The supply is provided through a 1.1A reset-able fuse.
4.4.1 MINI-DIN Keyboard and Mouse Connector (KBD)
Note
Ioh/Iol Type Signal PIN# Signal Type Ioh/Iol
Note
Note 1: To use the PS/2 mouse in the KBD connector an adapter cable is required.
Signal Description – Keyboard & and mouse Connector (MSE & KBD), see below.
4.4.2 Keyboard and Mouse pinrow Connector (KBDMSE)
PIN#
Signal Type Ioh/Iol
Note
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.
Bi-directional serial data line used to transfer data from or commands to the PS/2 mouse.
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 keyboard.
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