Kontron Mungo545, User Manual

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36 Mungo545 User’s Manual
SPECIFICATIONS :
Digital Input
Input channels: 2 bits
Input Voltage: High: 2.0V (min)
Low: 0.8V (max)
Input Load: High: 0.05mA max at 2.7V
Low: 0.4mA max at 0.5V
Register Address: 240H
Register Format: BIT:
D1 D0
Value: DI1 DI0
Digital Output
Output channels: 4 bits
Output voltage: High: Source -0.4mA at 2.4V min
Low: Sink 8mA at 0.5V max
Register Address: 240H (Write)
Register Format: BIT: D1 D0
Value: DO1 DO0
J18: External Keyboard Connector
Pin # Signal Name
1 VCC
2 External KB Clock
3 Internal KB Clock
4 External KB Clock
5 Internal KB Clock
6 GND
J20: Audio Connector
J20, a 12-pin header connector, supports an optional external connector
supporting 3 sockets for Line Out, Line In and Mic functions. The
following table shows the pin assignments o f this connector.
Signal Name Pin # Pin # Signal Name
Line Out R 1 2 Line Out L
GND 3 4 GND
Line In R 5 6 Line In L
GND 7 8 GND
Mic 9 10 BIAS
GND 11 12 GNC