Epson ETX-945 user manual PCI bus signals

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4.1.1PCI bus signals

This set of pins implements the module’s PCI expansion bus. For further information regarding the functions of the PCI bus signals, refer to the PCI Bus Specification, available from the PCI Special Interest Group (http://www.pcisig.com/specifications).

Signal Name

Signal function

Direction

 

 

 

PCICLK1-4

PCI clock outputs for external PCI devices

Out

REQ0-3#

Bus Request signals of PCI Masters

In

GNT0-3#

Grant signals to PCI Masters

Out

AD0-31

PCI address and data bus signals

In/Out

CBE0-3#

PCI Bus command and byte enables

In/Out

PAR

PCI bus parity bit

In

SERR#

System Error or PCI Clock RUN

In/Out

GPERR#

Parity Error

In/Out

PME#

Power management event

In/Out

LOCK#

Lock resource signal

In/Out

DEVSEL#

Device select

In/Out

TRDY#

Target ready

In/Out

IRDY#

Initiator ready

In/Out

STOP#

Stop

In/Out

FRAME#

Cycle frame

In/Out

PCIRST#

PCI bus reset

Out

INTA#

PCI interrupt A

In

INTB#

PCI interrupt B

In

INTC#

PCI interrupt C

In

INTD#

PCI interrupt D

In

ETX-945 User Manual 1.00

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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 HardwareBios Setup Utility Booting the SystemStandard Cmos Features Advanced Bios FeaturesPower Management Setup Advanced Chipset FeaturesNTSC, PAL Integrated Peripherals6 PnP/PCI Configuration Bios Beep Code ListOther Settings and Utilities Operating System DriversInterface Connector Details ETX1 Connector PCI bus signals Audio interface USB signalsVCC Miscellaneous functionsGND ReservedETX2 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 ConnectorsVGA Bios Bios Memory MappingAppendix System Resources Reference LAN ROMAddress Device Description I/O Port Address MapPage IRQ Level Function Interrupt Request IRQ LinesCode Function Bios Post CodesPage Page

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