11 ps/2 keyboard interface, 1 connector, 2 signal description – Kontron MOPSlcdLX User Manual
Page 24: Mopslcdlx user's guide

KTD-S0005-C
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PS/2 Keyboard Interface
MOPSlcdLX User's Guide
11 PS/2 Keyboard Interface
The keyboard and feature connector of the MOPSlcdLX offers four functions:
➤
PS/2 Keyboard
➤
Speaker
➤
Battery
➤
Reset button
11.1 Connector
The keyboard and feature connector is available through connector X15002 (10 pins). An adapter cable is
required to connect a standard keyboard to this interface. There is an adapter cable for the PS/2 keyboard
available from KONTRON (KAB-KB-PS2, part number 96060-0000-00-0). The adapter cables do not know
the other functions on this interface.
Header
Pin
Signal Name
Function
6 pin PS/2
1
SPKR
Speaker
2
GND
Ground
3
/RESIN
Reset input
4
RSVD
Reserved
5
KBDAT
Keyboard data
1
6
KBCLK
Keyboard clock
5
7
GND
Ground
3
8
VCC
1)
Power +5V
4
9
BATT
Battery
10
PWRGD
Power good
Note:
1)
To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
11.2 Signal Description
➤
When
POWERGD goes high it starts the reset generator on the CPU module to pull the
onboard reset line high after a valid reset period. You also can use this pin as a low active
hardware reset for modules
➤
A battery (signal
BATT) is not needed to hold CMOS setup data. Your configurations for
hard disks, floppy drives and other peripherals are saved in an onboard EEPROM. However
you need a battery to save the CMOS date and time when power supply is turned off
➤
SPKR is an output to drive a piezo electronic speaker