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Kontron
Signal Descriptions
10.2
/KBLOCK (Keyboard Lock)
10.2.1.
Input on CPU modules
Output on any other module
Input to the keyboard controller input Port 1, Bit 7
PWRGOOD
10.2.2.
Input on CPU modules
Open collector output on all other modules
When PWRGOOD goes low, it directly resets the system through the chipset. External
devices can use this signal for monitoring.
/RESIN (Reset input)
10.2.3.
Input on CPU modules
When /RESIN goes low, it triggers the onboard reset generator on the CPU module.
Speaker
10.2.4.
TTL output on modules that can drive a loudspeaker.
An 8-Ohm loudspeaker can be connected between SPEAKER and GND. Connect only one
loudspeaker to this pin. Usually, only the CPU drives this pin. However, other modules
can use this signal to drive the system loudspeaker.
KBDAT (Keyboard Data)
10.2.5.
Bi-directional I/O pin on CPU modules
Keyboard data signal
KBCLK (Keyboard Clock)
10.2.6.
Bi-directional I/O pin on CPU modules
Keyboard clock signal
MOPS/386A User's Guide
19
Keyboard and Feature Interface
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