Chapter 3
Hardware
CoreModule 740
Reference Manual
27
Note:
The shaded areas denote power or ground. The signals marked with * indicate active low.
System Fan
lists the pin signals of the optional System Fan header, which provides 2 pins with 0.079" (2mm)
pitch.
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%
Note:
The shaded areas denote power or ground.
28
GND VGA
VGA Ground
29
CRT_VSYNC
Vertical Sync – Digital Vertical Sync Output to the CRT
30
VCC_CON_DAC
+5V Power and Ground for Digital to Analog Converter
Table 3-7. Optional System Fan Pin Signals (J6)
Pin #
Signal
Description
1
VCC
+5.0 volts DC +/- 5%
2
GND Ground
Table 3-8. Power Interface Pin Signals (J7)
Pin
Signal
Descriptions
1
GND Ground
2
+5V
+5 Volts
3
GND
Ground
4
+12V
+12 Volts routed to PC/104 and PC/104-Plus connectors
5
GND
Ground
6
+3.3V_PCI
+3.3 Volts routed to PCI
7
GND
Ground
8
+5V
+5 Volts
9
GND
Ground
10
+5V
+5 Volts
Table 3-6. Video Interface Pin Signals (J10) (Continued)
Pin # Signal
Description