Epson ETX-945 user manual IDE interfaces, Signal Name Signal Function Direction

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4.4.1IDE interfaces

These pins carry data and control information to/from the board’s IDE drive controller, as indicated.

Signal Name

Signal Function

Direction

 

 

 

PIDE_D0-15

Primary IDE ATA bidirectional data bus

In/Out

 

 

 

PIDE_A0-2

Primary IDE ATA address bus

Out

 

 

 

PIDE_CS1#

Primary IDE chip select 1

Out

 

 

 

PIDE_CS3#

Primary IDE chip select 3

Out

 

 

 

PIDE_DRQ

Primary IDE DMA Request for IDE Master

In

 

 

 

PIDED_AK#

Primary IDE DACK# for IDE Master

Out

 

 

 

PIDE_RDY

Primary IDE Ready

In

 

 

 

PIDE_IOR#

Primary IDE IOR# command; function differs in Ultra-33 mode

Out

 

 

 

PIDE_IOW#

Primary IDE IOW# command; function differs in Ultra-33 mode

Out

 

 

 

PIDE_INTRQ

Primary channel interrupt request

In/Out

 

 

 

SIDE_D0-15

Secondary IDE ATA bidirectional data bus

In/Out

 

 

 

SIDE_A0-2

Secondary IDE ATA address bus

Out

 

 

 

SIDE_CS1#

Secondary IDE chip select 1

Out

 

 

 

SIDE_CS3#

Secondary IDE chip select 3

Out

 

 

 

SIDE_DRQ

Secondary IDE DMA Request for IDE Master

In

 

 

 

SIDED_AK#

Secondary IDE DACK# for IDE Master

Out

 

 

 

SIDE_RDY

Secondary IDE Ready

In

 

 

 

SIDE_IOR#

Secondary IDE IOR# command; function differs in Ultra-33 mode

Out

 

 

 

SIDE_IOW#

Secondary IDE IOW# command; function differs in Ultra-33 mode

Out

 

 

 

SIDE_INTRQ

Secondary channel interrupt request

In

 

 

 

DASP_S

Drive active or slave present on Secondary IDE channel

Out

 

 

 

PDIAG_S

Slave diagnostic passed indicator; function differs in DMA66 or DMA100

In

 

modes

 

 

 

 

HDRST#

Drive hardware reset

Out

 

 

 

CBLID_P#

Detects 80-conductor IDE cable on primary IDE channel

In

 

 

 

ETX-945 User Manual 1.00

www.diamondsystems.com

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Image 28
Contents High-Performance ETX 3.0 Compliant Computer-on-Modules Contents Safe Handling Precautions Important SAFE-HANDLING InformationIntroduction FeaturesRAM ETX-945 Models BiosUSB Block Diagram Functional OverviewBoard Dimensions, Mounting Holes, and Connectors Board Layout TopBoard Layout Bottom ETX Bus Connectors Bus and Interface Connector SummaryOther 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

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