Table of Contents
Advertisement
KTD-00781-A
3.3
Keyboard and Mouse connectors
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 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.
3.3.1 MINI-DIN Keyboard and Mouse Connector (KBD)
Pull
Note
Ioh/Iol
Type
U/D
-
-
-
-
PWR 5V/SB5V
-
-
-
-
-
-
PWR 5V/SB5V
-
-
Signal Description – Keyboard & and mouse Connector (MSE & KBD), see below.
3.3.2 Keyboard and Mouse pinrow Connector (KBDMSE)
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.
KBDDAT
Bi-directional serial data line used to transfer data from or commands to the PC-AT keyboard.
KTG41 family
Signal
PIN
-
NC
6
4
-
NC
2
-
NC
6
4
-
NC
2
Type
IOC
IOC
IOC
IOC
PWR
PWR
Signal
Type
5
MSCLK
IOC
3
GND
PWR
1
MSDAT
IOC
5
KBDCLK
IOC
3
GND
PWR
1
KBDDAT
IOC
Pull
Ioh/Iol
U/D
TBD
2K7
TBD
2K7
TBD
2K7
TBD
2K7
-
-
-
-
Page 24 of 78
Pull
Ioh/Iol
Note
U/D
TBD
2K7
-
-
TBD
2K7
TBD
2K7
-
-
TBD
2K7
Note
www.kontron.com
Advertisement
Table of Contents
