Kontron KT690-mITX (BGA) - dual core Manual de usuario Pagina 31

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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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