Epson ETX-945 user manual LCD interface, Serial port interfaces

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4.3.3LCD interface

These pins carry data for graphical display on an LCD panel, as indicated.

Signal Name

Signal Function

Direction

 

 

 

BIASON

Controls display contrast voltage

Out

 

 

 

DIGON

Controls digital power to LCD

Out

 

 

 

BLON#

Controls backlight power to LCD

Out

 

 

 

LCD0-LCD19

LVDS channel data 0-19

Out

 

 

 

DETECT#

Panel hot-plug detection

In

 

 

 

FPDDC_CLK DDC

DDC signals for flat panel detection and control

Out

 

 

 

FPDDC_DAT DDC

DDC signals for flat panel detection and control

In/Out

 

 

 

4.3.4Serial port interfaces

These pins carry data and control information to/from the board’s two serial ports, as indicated. These pins provide logic-level signaling, and require external I/O buffering if RS-232, RS-422, or RS-485 signaling is desired.

Signal Name

Signal Function

Direction

 

 

 

DTR1#, DTR2#

Data terminal ready outputs from serial ports 1 and 2

Out

 

 

 

RI1#, RI2#

Ring indicator inputs for serial ports 1 and 2

In

 

 

 

TXD1, TXD2

Transmit data outputs from serial ports 1 and 2

Out

 

 

 

RXD1, RXD2

Receive data inputs for serial ports 1 and 2

In

 

 

 

CTS1#, CTS2#

Clear to send signal inputs for serial ports 1 and 2

In

 

 

 

RTS1#, RTS2#

Request to send outputs from serial ports 1 and 2

Out

 

 

 

DCD1#, DCD2#

Data carrier detected inputs for serial ports 1 and 2

In

 

 

 

DSR1#, DSR2#

Data set ready inputs for serial ports 1 and 2

In

 

 

 

ETX-945 User Manual 1.00

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Page 23

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Contents High-Performance ETX 3.0 Compliant Computer-on-Modules Contents Important SAFE-HANDLING Information Safe Handling PrecautionsRAM FeaturesIntroduction USB BiosETX-945 Models Functional Overview Block DiagramBoard Layout Top Board Dimensions, Mounting Holes, and ConnectorsBoard Layout Bottom Other Interface Connectors Bus and Interface Connector SummaryETX Bus 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

ETX-945 specifications

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