Epson ETX-945 Keyboard, mouse, and infrared transceiver interfaces, Parallel port interface

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4.3.5Keyboard, mouse, and infrared transceiver interfaces

These pins carry data and clock signals associated with the board’s PS2 keyboard and mouse ports. Additionally, transmit and receive data to/from an IR device, can be routed as indicated.

Signal Name

Signal Function

Direction

 

 

 

KBDAT

Data to/from keyboard.

In/Out

 

 

 

KBCLK

Clock signal to keyboard

Out

 

 

 

MSDAT

Data to/from mouse

In/Out

 

 

 

MSCLK

Clock signal to mouse.

Out

 

 

 

IRTX

Infrared transmit data

Out

 

 

 

IRRX

Infrared receive data

In

 

 

 

4.3.6Parallel port interface

These pins carry data and control information to/from the board’s bidirectional parallel port, as indicated.

Signal Name

Signal Function

Direction

 

 

 

LPT/FLPY#

Interface configuration input

In

 

 

 

STB#

Printer data strobe

Out

 

 

 

AFD#

Automatic line feed request

Out

 

 

 

PD0-7

Bidirectional parallel data bus

In/Out

 

 

 

ERR#

Printer error

In

 

 

 

INIT#

Printer initialization control

Out

 

 

 

SLIN#

Printer select control

Out

 

 

 

ACK#

Printer ready to receive data

In

 

 

 

BUSY

Printer busy

In

 

 

 

PE

Printer out of paper

In

 

 

 

SLCT

Printer power on

In

 

 

 

Note: These pins are shared with the board’s floppy drive controller function, under control of the LPT/FLPY# input signal. When that signal is left unconnected or held high, the port is placed in parallel-port mode.

ETX-945 User Manual 1.00

www.diamondsystems.com

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Contents High-Performance ETX 3.0 Compliant Computer-on-Modules Contents Safe Handling Precautions Important SAFE-HANDLING InformationFeatures IntroductionRAM Bios ETX-945 ModelsUSB Block Diagram Functional OverviewBoard Dimensions, Mounting Holes, and Connectors Board Layout TopBoard Layout Bottom Bus and Interface Connector Summary ETX Bus ConnectorsOther Interface Connectors Getting Started Configuring the Hardware ETX Development KitsBooting the System Bios Setup UtilityStandard Cmos Features Advanced Bios FeaturesAdvanced Chipset Features Power Management SetupNTSC, PAL Integrated PeripheralsBios Beep Code List 6 PnP/PCI ConfigurationOther Settings and Utilities Operating System DriversInterface Connector Details ETX1 Connector PCI bus signals USB signals Audio interfaceMiscellaneous functions VCCGND ReservedETX2 Connector ETX3 Connector Analog video output TV video outputLCD interface Serial port interfacesKeyboard, mouse, and infrared transceiver interfaces Parallel port interfaceFloppy drive interface LTGIO0 ETX4 Connector Signal Name Signal Function Direction IDE interfacesPower control and management Ethernet portSata Connectors Miscellaneous signalsBios Memory Mapping VGA BiosAppendix System Resources Reference LAN ROMI/O Port Address Map Address Device DescriptionPage Interrupt Request IRQ Lines IRQ Level FunctionBios Post Codes Code FunctionPage Page

ETX-945 specifications

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