Epson ETX-945 user manual Miscellaneous functions, Vcc, Gnd, Reserved, Serirq

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4.1.4Miscellaneous functions

These pins carry power and ground signals and an interrupt request as indicated.

Signal Name

Signal Function

Direction

 

 

 

VCC

+5V ±5% DC power input

In

 

 

 

GND

Power ground

n/a

 

 

 

3V

+3.3V ± 5% supply generated on the ETX module, for

Out

 

powering external devices (500mA max. external load)

 

 

 

 

RESERVED

Do not connect

n/a

 

 

 

SERIRQ

Serial interrupt request

In

 

 

 

Caution: Do not connect the 3V pins (pins 12 and 16) of EXT1 to an external power source!

ETX-945 User Manual 1.00

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Page 19

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Contents High-Performance ETX 3.0 Compliant Computer-on-Modules Contents Important SAFE-HANDLING Information Safe Handling PrecautionsIntroduction FeaturesRAM ETX-945 Models BiosUSB Functional Overview Block DiagramBoard Layout Top Board Dimensions, Mounting Holes, and ConnectorsBoard Layout Bottom ETX Bus Connectors Bus and Interface Connector SummaryOther Interface Connectors Getting Started ETX Development Kits Configuring the HardwareAdvanced Bios Features Booting the SystemBios Setup Utility Standard Cmos FeaturesIntegrated Peripherals Advanced Chipset FeaturesPower Management Setup NTSC, PALOperating System Drivers Bios Beep Code List6 PnP/PCI Configuration Other Settings and UtilitiesInterface Connector Details ETX1 Connector PCI bus signals Audio interface USB signalsReserved Miscellaneous functionsVCC GNDETX2 Connector ETX3 Connector TV video output Analog video outputSerial port interfaces LCD interfaceParallel port interface Keyboard, mouse, and infrared transceiver interfacesFloppy drive interface LTGIO0 ETX4 Connector IDE interfaces Signal Name Signal Function DirectionEthernet port Power control and managementMiscellaneous signals Sata ConnectorsLAN ROM Bios Memory MappingVGA Bios Appendix System Resources ReferenceAddress Device Description I/O Port Address MapPage IRQ Level Function Interrupt Request IRQ LinesCode Function Bios Post CodesPage Page

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