Table of Contents
Kontron User's Guide ETX CD iv
4.5.1
Connector X3 (Signal Levels) .............................................................................29
4.5.2 Connector X3 Signal Description.........................................................................31
4.6 Connector X4 Subsystems .................................................................................33
4.6.1 Connector X4 (IDE 1, IDE 2, Ethernet, Miscellaneous) ............................................33
4.6.2 Connector X4 (Signal Levels) .............................................................................34
4.6.3 Connector X4 Signal Description.........................................................................36
4.7 Feature Connector J11 .....................................................................................37
4.7.1 SDVO Output...................................................................................................37
4.7.2 SDVO Connector and Flat Foil Cable .....................................................................37
4.7.3 BIOS Requirements..........................................................................................38
4.7.4 Pinout Feature Connector J11 ............................................................................38
5 Special Features ........................................................................................................40
5.1 Watchdog Timer ..............................................................................................40
6 Design Considerations................................................................................................41
6.1 Thermal Management.......................................................................................41
6.2 Heatspreader Dimensions .................................................................................41
7 Important Technology Information ..............................................................................43
7.1 I/O APIC vs 8259 PIC Interrupt mode ...................................................................43
7.1.1 Method of interrupts transmission...................................................................... 43
7.1.2 Interrupt priority ............................................................................................ 43
7.1.3 More interrupts...............................................................................................43
7.2 Thermal Monitor and Catastrophic Thermal Protection ............................................43
7.2.1 Summary .......................................................................................................44
7.3 Processor Performance Control ..........................................................................44
7.4 Thermal Management.......................................................................................44
7.5 ETX®-CD onboard Fan connector ........................................................................45
7.5.1 Schematics of Fan control .................................................................................45
7.5.2 Location and Pinout of Fan connector J6..............................................................46
7.5.3 BIOS Settings .................................................................................................47
7.5.4 Electrical characteristics...................................................................................47
7.5.5 Processor Clock Throttling................................................................................. 48
7.6 ACPI Suspend Modes and Resume Events..............................................................48
8 System Resources ......................................................................................................50
8.1 Interrupt Request (IRQ) Lines ............................................................................ 50
8.2 Direct Memory Access (DMA) Channels................................................................. 51
8.3 Memory Area ..................................................................................................52
8.4 I/O Address Map .............................................................................................52
8.5 Peripheral Component Interconnect (PCI) Devices .................................................52
8.6 Inter-IC (I2C) Bus............................................................................................52
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