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3 keyboard and ps/2 mouse connectors, 2 keyboard and mouse pin-row connector (kbdmse), Keyboard and ps/2 mouse connectors – Kontron KT690-mITX (BGA) - dual core User Manual

Page 31: Keyboard and mouse pin-row connector (kbdmse), Kt690 family, Keyboard and ps/2 mouse connectors 4.3

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KT690 Family

KTD-00738-J

Public User Manual

Date 2012-06-01

Page

31

Keyboard and PS/2 mouse connectors

4.3


Attachment of a keyboard or PS/2 mouse adapter can be done through the stacked PS/2 mouse and
keyboard connector (MSE & KBD).

Both interfaces utilize open-drain signaling 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
resetable fuse.

4.3.1 Stacked MINI-DIN keyboard and mouse Connector (MSE & KBD)

Note

Pull

U/D

Ioh/Iol

Type

Signal

PIN

Signal

Type

Ioh/Iol

Pull

U/D

Note

-

-

-

NC

6

5

MSCLK

IOC

TBD

2K7

-

-

PWR 5V/SB5V 4

3

GND

PWR

-

-

-

-

-

NC

2

1

MSDAT

IOC

TBD

2K7

-

NC

6

5 KBDCLK

IOC

TBD

2K7

-

-

PWR 5V/SB5V 4

3

GND

PWR

-

-

-

-

-

NC

2

1

KBDDAT

IOC

TBD

2K7



Signal Description – Keyboard & and mouse Connector (MSE & KBD), see below.

4.3.2 Keyboard and mouse pin-row Connector (KBDMSE)

PIN

Signal

Type

Ioh/Iol

Pull

U/D

Note

1

KBDCLK

IOC

TBD

4K7

2

KBDDAT

IOC

TBD

4K7

3

MSCLK

IOC

TBD

4K7

4

MSDAT

IOC

TBD

4K7

5

5V/SB5V

PWR

-

-

6

GND

PWR

-

-


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.

KBDDAT

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

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