Chapter 3
Table 3-6. Video Interface Pin Signals (J10) (Continued)
Pin #
Signal
28
GND VGA
29
CRT_VSYNC
30
VCC_CON_DAC
Note: The shaded areas denote power or ground. The signals marked with * indicate active low.
System Fan
Table 3-7
lists the pin signals of the optional System Fan header, which provides 2 pins with 0.079" (2mm)
pitch.
Table 3-7. Optional System Fan Pin Signals (J6)
Pin #
Signal
1
VCC
2
GND
Note: The shaded areas denote power or ground.
Power Interface
The CoreModule 740 requires one +5 volt DC power source and provides a 10-pin, shrouded header with 2
rows, odd/even pin sequence (1, 2), and 0.100" (2.54mm) pitch. If the +5VDC power drops below ~4.65V, a
low voltage reset is triggered, resetting the system.
The power input header (J7) supplies the following voltage and ground directly to the module:
•
5.0VDC +/- 5%
Table 3-8. Power Interface Pin Signals (J7)
Pin
Signal
1
GND
2
+5V
3
GND
4
+12V
5
GND
6
+3.3V_PCI
7
GND
8
+5V
9
GND
10
+5V
Note: The shaded areas denote power or ground.
CoreModule 740
Description
VGA Ground
Vertical Sync – Digital Vertical Sync Output to the CRT
+5V Power and Ground for Digital to Analog Converter
Description
+5.0 volts DC +/- 5%
Ground
Descriptions
Ground
+5 Volts
Ground
+12 Volts routed to PC/104 and PC/104-Plus connectors
Ground
+3.3 Volts routed to PCI
Ground
+5 Volts
Ground
+5 Volts
Reference Manual
Hardware
27
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