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SBC8168 Socket 370 All-in-One CPU Card Series User’s Manual

Jumpers and Connectors

9

2.3 Connectors

The connectors allow the CPU card to connect with other parts
of the system. Some problems encountered by your system
may be a result from loose or improper connections. Ensure
that all connectors are in place and firmly attached. The
following table lists the function of each connector on the

SBC8168

. Their corresponding pin assignments are described

in Chapter 4 and Appendix B.

Connectors Label

Connectors Label

Secondary IDE Connector

CN1

ACPI Connector

CN15

FDD Connector

CN2

VGA Connector

CN16

Printer Port Connector

CN3

PS/2 Mouse Connector

CN17

Primary IDE Connector

CN4

PS/2 Keyboard Connector

CN18

USB 1 Connector

CN5

Keyboard/Mouse
Connector

CN19

USB 2 Connector

CN6

Fan Power Connector 1

CN20

IrDA Connector

CN7

Fan Power Connector 3

CN21

COM1 Connector

CN8

Fan Power Connector 2

CN22

COM2 Connector

CN9

Ethernet 2 RJ-45
Connector

CN23

Flat Panel Connector

CN11

DiskOnChip

®

Socket

U31

Ethernet 1 RJ-45
Connector

CN12

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Summary of Contents for SBC8168

Page 1: ...SBC8168 Socket 370 Full size All in One CPU Card Series User s Manual ...

Page 2: ... AXIOMTEK makes no commitment to update or to keep current the information contained in this manual AXIOMTEK reserves the right to make improvements to this document and or product at any time and without notice No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the pri...

Page 3: ... electricity on your body Wear a wrist grounding strap available from most electronic component stores when handling boards and components Trademarks Acknowledgments AXIOMTEK is a trademark of AXIOMTEK Co Ltd IBM is a registered trademark of International Business Machines Corporation MS DOS and Windows 95 98 NT 2000 are trademarks of Microsoft Corporation Award is a trademark of Award Software In...

Page 4: ...iv This page does not contain any information ...

Page 5: ...rs 9 Chapter 3 Installation 3 1 System Memory 9 3 2 CPU Installation 9 3 3 Ultra DMA 66 100 Drive Installation 10 3 4 Completing Installation 11 Chapter 4 Hardware Description 4 1 Microprocessors 13 4 2 BIOS 13 4 3 I O Port Address Map 14 4 4 Interrupt Controller 15 4 5 Flat Panel Bezel Connector 16 4 6 Enhanced IDE Interface Connector 17 4 7 VGA Interface 18 4 7 1 CRT Interface Controller 18 4 7 ...

Page 6: ...Table of Contents vi 4 14 IrDA Connector 21 4 15 ACPI Connector 22 ...

Page 7: ...d Chipset Features 36 7 6 Integrated Peripherals 39 7 7 Power Management Setup 42 7 7 1 Reload Global Timer Events 45 7 8 PnP PCI Configurations 45 7 9 PC Health Status 48 7 10 Frequency Voltage Control 49 7 11 Load Fail Safe Defaults 50 7 12 Load Optimized Defaults 51 7 13 Set Supervisor User Password 52 7 14 Save Exit Setup 53 7 15 Exit Without Saving 54 Appendix A Watchdog Timer Using the Watch...

Page 8: ......

Page 9: ... AGP2x VGA controller both ensuring its compatibility with PCI bus passive backplanes Its 6 layer structure reduces signal noise and built in power management feature These advanced concepts along with the PCI Local Bus architecture bring outstanding performance to Windows based applications Designed for the professional embedded developers the Socket 370 all in one SBC8168 CPU card is virtually y...

Page 10: ...RAM module z IDE Interface 2 bus mastering EIDE up to four devices Ultra DMA33 66 100 supported z FDD Interface Supports up to 2 drives z Serial Ports Two 16550 UARTs ports with 16 byte as one RS 232 and one RS 232 422 485 z Parallel Ports One parallel port with ECP EPP SPP supported z VGA Controller AGP interface controller integrated in Intel 815 GMCH Onboard 4MB SDRAM display cache optional Sup...

Page 11: ...e Interrupt NMI via jumper selection 64 programmable time interval levels of 0 5 8 5 80 50 800 100 1600 seconds z SSD Supports M Systems DiskOnChip 2000 series z Power Consumption 5V 10A 12V 200mA Pentium III 850MHz 256MB SDRAM z Other Features Keyboard Mouse Wakeup via ATX power supply Modem Ring on via ATX power supply STR Suspend to RAM via ATX power supply z Operating Temperature 0o C 60o C 32...

Page 12: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual Introduction 4 z CRT Drivers ...

Page 13: ...370 All in One CPU Card Series User s Manual Introduction 5 1 4 Board Dimensions 338 24 121 92 48 01 81 02 18 65 4 00 5 46 11 85 24 46 25 02 8 26 4 70 9 50 98 50 19 50 4 00 62 77 1 85 47 00 14 67 3 00 4 92 19 40 32 84 ...

Page 14: ......

Page 15: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual Jumpers and Connectors 5 C h a p t e r 2 Jumpers and Connectors ...

Page 16: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual Jumpers and Connectors 6 2 1 Board Layout ...

Page 17: ...32 422 485 Setting RS232 Short 3 5 4 6 JP3 Reserved Short 1 2 JP4 COM2 RS 232 422 485 Setting RS232 Short 1 2 JP5 DiskOnChip Memory Segment Disabled Open JP6 CMOS Clear Setting Normal Short 1 2 JP7 Reserved Short 2 3 JP9 Keyboard Mouse Wakeup Function Setting Disabled Short 1 2 JP10 Watchdog Timer Mode Setting Disabled Open JP12 Reserved Open JP13 Reserved Open 2 2 1 COM2 RS232 422 485 Settings JP...

Page 18: ...ormal Short 1 2 default Clear CMOS Short 2 3 1 2 3 JP6 2 2 4 Keyboard Mouse Wakeup Function Setting JP9 Options Settings Disabled Short 1 2 default Enabled Short 2 3 JP9 1 2 3 2 2 5 Watchdog Trigger Mode Setting JP10 The watchdog timer is an indispensable feature of the SBC8168 It has a sensitive error detection function and a report function When the CPU processing comes to a halt the watchdog ei...

Page 19: ...sponding pin assignments are described in Chapter 4 and Appendix B Connectors Label Connectors Label Secondary IDE Connector CN1 ACPI Connector CN15 FDD Connector CN2 VGA Connector CN16 Printer Port Connector CN3 PS 2 Mouse Connector CN17 Primary IDE Connector CN4 PS 2 Keyboard Connector CN18 USB 1 Connector CN5 Keyboard Mouse Connector CN19 USB 2 Connector CN6 Fan Power Connector 1 CN20 IrDA Conn...

Page 20: ......

Page 21: ...come in sizes of 16MB 32MB 64MB 128MB and 256MB SDRAMs NOTE Use SDRAM modules with PC100 or PC133 specification when running 66 100MHz CPU bus speed With 133MHz CPU bus speed SDRAM modules with PC133 specification can be used You have to install the Intel Celeron or Pentium III processor before installing the memory modules 3 2 CPU Installation 1 Align pin one e g white dot of the CPU with pin one...

Page 22: ...MA 66 drives The SBC8168 on this aspect can support a total of 4 Ultra DMA 66 drives It is through the IDE Connector CN1 and CN4 where the 80 conductor cable is connected The diagram below illustrates the proper installation procedure including color coding of connectors of the 80 conductor cable Red stripe represents pin 1 of cable Grey ATASTM for Slave Drive Black ATASTM for Master Drive 80 pin ...

Page 23: ...umpers according to the jumper settings on Chapter 2 3 Install the SBC8168 CPU card into one of the slots on the passive backplane You may allow the SBC8168 to stand alone as a single board computer 4 Connect the I O cables and peripherals i e floppy disk hard disk monitor keyboard power supply and etc to the CPU board NOTE The color of pin one is usually red or blue while others are gray 5 Turn O...

Page 24: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual 12 This page does not contain any information ...

Page 25: ... NT 2000 Windows 95 98 Me and MS DOS environments The system s performance depends on the installed CPU on the board When installing a new CPU the jumpers including CPU type CPU Clock CPU Voltage and Bus Clock may need to be adjusted Make sure all the settings are correct for the installed CPU to prevent any damage to the CPU 4 2 BIOS The system BIOS used in SBC8168 is Award Plug and Play BIOS The...

Page 26: ... Timer 060 06F Keyboard controller 070 07F Real time clock NMI 080 09F DMA page register 0A0 0BF Interrupt controller 2 0F0 Clear math coprocessor busy signal 0C0 0DF DMA controller 2 0F1 Reset math coprocessor 0F8 0FF Math processor 120 121 Watchdog function 1F0 1F8 Fixed disk controller 200 207 Game port 300 31F Prototype card 360 36F Reserved 378 37F Parallel port 1 3B0 3BF MDA video card inclu...

Page 27: ...RQ0 System timer output IRQ1 Keyboard IRQ2 Interrupt rerouting from IRQ8 through IRQ15 IRQ3 Serial port 2 IRQ4 Serial port 1 IRQ5 Reserved IRQ6 Floppy disk controller IRQ7 Parallel port 1 IRQ8 Real time clock IRQ9 Reserved USB IRQ10 Reserved VGA IRQ11 Reserved USB LAN IRQ12 PS 2 Mouse IRQ13 Math coprocessor IRQ14 Primary IDE channel IRQ15 Secondary IDE Channel NOTE The table above displays the sta...

Page 28: ... pole External Speaker and Internal Buzzer Connector Pins 2 4 6 and 8 of CN11 connect to the case mounted speaker unit or internal buzzer Short pins 4 6 when connecting the CPU card to an internal buzzer When connecting an external speaker set these jumpers to Open and install the speaker cable on pin 8 and pin 2 External SMI Button Switch This switch enables the connection between the SBC8168 bas...

Page 29: ...D on the control panel This LED will flash when the HDD is being accessed Pins 19 20 of CN11 connect the hard disk drive and the front panel HDD LED Pins 19 is and pin 20 is assigned as Reserved pins Pins 10 15 and 16 of CN11 are reserved pins 4 6 Enhanced IDE Interface Connector The SBC8168 includes a PCI bus enhanced IDE controller that can support master slave mode and post write transaction me...

Page 30: ...8 bit colors z 3D Hyper Pipelined architecture z Full 2D H W Acceleration z Motion Video Acceleration z Integrated programmable linear address feature accelerates GUI performance z Hardware Windows acceleration 4 7 3 VGA Connector CN16 The SBC8168 has three connectors that support CRT VGA individually or simultaneously CN16 is a standard 15 pin pin header connector commonly used for the CRT VGA di...

Page 31: ...s The floppy drives may be any one of the following types 5 25 360KB 1 2MB and 3 5 720KB 1 44MB 2 88MB The CN2 pin assignment is listed in Appendix B 4 10 Parallel Port Interface The SBC8168 onboard CN3 is a multi mode parallel port able to support z Standard mode IBM PC XT PC AT and PS 2 TM compatible with bi directional parallel port z Enhanced mode Enhance parallel port EPP compatible with EPP ...

Page 32: ...upt Requests on COM1 and COM2 are selected via IRQ4 and IRQ3 respectively Additionally both ports can be enabled or disabled via BIOS setting The RS 232 pin assignments for COM1 and COM2 along with the RS 485 pin assignments for COM2 are in Appendix B 4 12 Keyboard and PS 2 Mouse Connectors The SBC8168 provides a PS 2 keyboard CN18 and PS 2 mouse CN17 interface with a 5 pin connector CN19 is a DIN...

Page 33: ...rals supporting the USB interface CN5 and CN6 are 10 pin USB pin headers on the SBC8168 CN5 CN6 1 2 9 10 No connector USB GND USB P1 P3 USB P1 P3 USB Power No connector USB GND USB P0 P2 USB P0 P2 USB Power 4 14 IrDA Connector CN7 is a 10 pin IrDA pin header for wireless communication CN7 2 4 10 8 6 CIRRX No connector 5V 1 3 9 7 5 5V IRRX GND IRTX No connector No connector No connector ...

Page 34: ...trade offs for power management The interface enables and supports reliable power management through improved hardware and operating system coordination The specification enables new power management technology to evolve independently in operating systems and hardware while ensuring that they continue to work together CN15 on the SBC8168 is a 6 pin header connector that provides ACPI interface CN1...

Page 35: ...graphics and performance via per pixel 3D renderign and parallel data paths which allow each pipeline stage to simultaneously operate on different primitives or portions of the same primitive The Intel 815 GMCH graphics accelerator engine supports perspective correct texture mapping trilinear and anisotropic Mip Map filtering Gouraund shading alpha blending fogging and Z buffering A rich set of 3D...

Page 36: ...rosoft Windows ATI s drivers for Windows include a Big Cursor setting and fast panning scrolling capabilities Make sure you know the version of the application for which you are installing drivers Your Display Driver Diskettes contain drivers for several versions of certain applications For your driver to operate properly you must install the driver for your version of the application program NOTE...

Page 37: ... 2 1 z PCI Bus Master data transfers z Backward compatible software with 82557 82558 and 82559 6 3 Drivers Supported Ethernet 1 and Ethernet 2 Bundled with popular software drivers the SBC8168 Ethernet interface allows great flexibility to work with all major networking operating systems including Novell NetWare v2 x v3 x v4 x Microsoft LAN Manager Win3 1 Win NT 2000 Win95 98 Me IBM LAN Server SCO...

Page 38: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual 26 This page does not contain any information ...

Page 39: ...ntrolling the entire system 7 2 BIOS Setup The Award BIOS provides a Setup utility program for specifying the system configurations and settings The BIOS ROM of the system stores the Setup utility When you turn ON the computer the Award BIOS is immediately activated Pressing the Del key immediately allows you to enter the Setup utility If you are a little bit late pressing the Del key POST Power O...

Page 40: ... Status Exit Without Saving Esc Quit Ç È Æ Å Select Item F10 Save Exit Setup Time Date Hard Disk Type The section below the setup items of the Main Menu displays the control keys for this menu Another section located at the bottom of the Main Menu just below the control keys section displays information on the currently highlighted item in the list NOTE If you find that your computer cannot boot a...

Page 41: ... 2 31 24 Menu Level f f IDE Primary Master Press Enter None f IDE Primary Slave Press Enter None Change the f IDE Secondary Master Press Enter None Day month f IDE Secondary Slave Press Enter None Year and century Drive A 1 44M 3 5 in Drive B None Floppy 3 Mode Support Disabled Video EGA VGA Halt On All But Keyboard Base Memory 640K Extended Memory 63488K Total Memory 64512K ÇÈÆÅ Move Enter Select...

Page 42: ...nnecting up to four IDE hard disks or other IDE devices Each channel can support up to two hard disks the first is the Master and the second is the Slave To enter the specifications for a hard disk drive you must select first a Type There are 45 predefined types and 4 user definable types are for Enhanced IDE BIOS Types 1 to 45 are predefined Type User is user definable For the Primary Master Slav...

Page 43: ... to define your own drive type manually z Drive A Drive B These fields identify the types of floppy disk drive A or drive B that has been installed in the computer The available specifications are 360K 5 25 in 5 25 inch PC type standard drive 360Kb capacity 1 2M 5 25 in 5 25 inch AT type high density drive 1 2MB capacity 720K 3 5 in 3 5 inch double sided drive 720Kb capacity 1 44M 3 5 in 3 5 inch ...

Page 44: ... Hercules or MDS adapters includes high resolution monochrome adapters z Halt On This field determines whether the system will halt if an error is detected during power up No errors The system boot will halt on any error detected default All errors Whenever the BIOS detects a non fatal error the system will stop and you will be prompted All But Keyboard The system boot will not stop for a keyboard...

Page 45: ...rive Disabled and someone Boot Up Floppy Seek Enabled Attempts to write Boot Up NumLock Status On data into this area Gate A20 Option Fast BIOS will show Typematic Rate Setting Disabled a warning Typematic Rate Chars Sec 6 message on Typematic Delay Msec 250 screen and alarm Security Option Setup beep OS Select for DRAM 64MB Non OS2 Video BIOS Shadow Enabled C8000 CBFFF Disabled CC000 CFFFF Disabl...

Page 46: ...CC checking of the CPU s L2 cache By default this field is Enabled z Processor Number Feature When a Pentium III CPU is installed the system automatically detects it and displays this item z Quick Power On Self Test When enabled this field speeds up the Power On Self Test POST after the system is turned ON If it is set to Enabled BIOS will skip some items z First Second Third Boot Device These ite...

Page 47: ...led z Typematic Rate Chars Sec When the typematic rate is enabled the system registers repeated keystrokes speeds You can select speed range from 6 to 30 characters per second By default this item is set to 6 z Typematic Delay Msec When typematic rate is enabled this item allows you to set the time interval between the display of the first and second characters By default this item is set to 250ms...

Page 48: ...e Disabled Video BIOS Cacheable Disabled Memory Hole at 15M 16M Disabled CPU Latency Timer Enabled Delayed Transaction Enabled AGP Graphics Aperture Size 64MB Display Cache Frequency 100MHz System Memory Frequency Auto On Chip Video Window Size 64MB Onboard Display Cache Setting Initial Display Cache Enabled CAS Latency 3 Paging Mode Control Open RAS to CAS Override by CAS LT RAS Timing Fast RAS P...

Page 49: ...y Hole at 15MB 16MB In order to improve performance certain space in memory can be reserved for ISA cards This field allows you to reserve 15MB to 16MB memory address space to ISA expansion cards This makes memory from 15MB and up unavailable to the system Expansion cards can only access memory up to 16MB By default this field is set to Disabled z Passive Release When enabled CPU to PCI bus access...

Page 50: ...tting is 100MHz z System Memory Frequency This option specifies the clock speed of the unbuffered SDRAM modules installed onboard The settings are 100MHz 133MHz or Auto The default setting is Auto z On Chip Video Window Size This item defines the amount of system memory shared to the video features of the board in order to display the apporpriate Windows screen The options available are 32M and 64...

Page 51: ...uto USB Controller Enabled USB Keyboard Support Disabled USB Mouse Support Disabled Init Display First PCI Slot IDE HDD Block Mode Enabled POWER ON Function Button ONLY X KB Power ON Password Enter X Hot Key Power ON Ctrl F1 Onboard FDC Controller Enabled Onboard Serial Port 1 3F8 IRQ4 Onboard Serial Port 2 2F8 IRQ3 UART Mode Select Normal X UR2 Duplex Mode Half Onboard Parallel Port 378 IRQ7 Para...

Page 52: ...your system software support Ultra DMA 33 66 100 select Auto to enable BIOS support The options available are Auto Mode 0 Mode 1 and Mode 2 z USB Controller This field allows you to enable or disable the USB function integrated on the ICH2 controller The default setting is Enabled z USB Keyboard Support USB Mouse Support Select Enabled if your system contains a Universal Serial Bus USB controller ...

Page 53: ...able this setting user must reboot and allow system to finish the boot up process otherwise the setting will not take effect z Onboard FDC Controller Select Enabled if your system has a floppy disk controller FDC installed on the system board and you wish to use it If you install and in FDC or the system has no floppy drive select Disabled in this field The options available are Enabled Disabled z...

Page 54: ...d Software Advanced Chipset Features ACPI Function Disabled Item Help ACPI Suspend Type S1 POS Power Management User Define Menu Level f Video Off Method DPMS Video Off in Suspend Yes Suspend Type Stop Grant MODEM Use IRQ 4 Suspend Mode Disabled HDD Power Down Disabled Soft Off by PWR BTTN Instant off Wake Up On LAN2 Enabled Power On Ring Enabled USB KB Wake From S3 Disabled Resume by Alarm Disabl...

Page 55: ...of power saving and is directly related to the following modes HDD Power Down Doze Mode Suspend Mode There are four selections for Power Management three of which have fixed mode settings Disable default No power management Disables all four modes Min Power Saving Minimum power management Doze Mode 1 hr Standby Mode 1 hr Suspend Mode 1 hr and HDD Power Down 15 min Max Power Saving Maximum power ma...

Page 56: ... except the CPU will be shut OFF z HDD Power Down When enabled and after the set time of system inactivity the hard disk drive is powered down while all other devices remain active z Soft Off by PWR BTTN This only works with systems using an ATX power supply It also allows tser to define the type of soft power OFF sequence the system will follow Instant Off default This option follows the conventi...

Page 57: ...isabled 7 8 PnP PCI Configurations This option configures the PCI bus system All PCI bus systems on the system use INT thus all installed PCI cards must be set to this value CMOS Setup Utility Copyright 1984 2000 Award Software PnP PCI Configurations PNP OS Installed On Item Help Reset Configuration Data Disabled Menu Level f Resources Controlled By Auto ESCD X IRQ Resources Press Enter When resou...

Page 58: ...n each system interrupt as one of the following types depending on the type of device using the interrupt 1 Legacy ISA Devices compliant with the original PC AT bus specification requiring a specific interrupt such as IRQ4 for serial port 1 2 PCI ISA PnP Devices compliant with the Plug and Play standard whether designed for PCI or ISA bus architecture The default value is PCI ISA PnP z DMA Resourc...

Page 59: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual Award BIOS Utility 47 PCI VGA can work with a MPEG ISA VESA VGA card When disabled a PCI VGA cannot work with a MPEG ISA VESA Card ...

Page 60: ... FAN3 Speed 0 RPM ÇÈÆÅ Move Enter Select PU PD Value F10 Save ESC Exit F1 General Help F5 Previous Values F6 Fail Safe Defaults F7 Optimized Defaults z Vcore VGTL VCC3 5V 12V 12V 5V 5VSB V VBAT V These optional and read only fields show the current voltages in the voltage regulators and power supply as monitored by the hardware monitoring IC z Current CPU Temperature These read only fields reflect...

Page 61: ...0 Save ESC Exit F1 General Help F5 Previous Values F6 Fail Safe Defaults F7 Optimized Defaults z Auto Detect DIMM PCI Clk This item automatically detects the clock speeds of the system memory installed as well as the PCI interface The options available are Enabled and Disabled The default setting is Enabled z Speed Spectrum Modulated This item directly relates to the EMI performance of the whole s...

Page 62: ...formance features CMOS Setup Utility Copyright Award Software Standard CMOS Features Frequency Voltage Control Advanced BIOS Features Load Fail Safe Defaults Advanced Chipset Features Load Optimized Defaults Integrated Peripherals Set Supervisor Password Power Ma PnP PCI C Load Fail Safe Defaults Y N N PC Health Status Exit Without Saving Esc Quit Ç È Æ Å Select Item F10 Save Exit Setup Load Fail ...

Page 63: ...es CMOS Setup Utility Copyright Award Software Standard CMOS Features Frequency Voltage Control Advanced BIOS Features Load Fail Safe Defaults Advanced Chipset Features Load Optimized Defaults Integrated Peripherals Set Supervisor Password Power Man PnP PCI Co Load Optimized Defaults Y N N PC Health Status Exit Without Saving Esc Quit Ç È Æ Å Select Item F10 Save Exit Setup Load Optimized Defaults...

Page 64: ...ur password by asking you to type it again After setting a password the screen automatically returns to the main screen To disable a password just press the Enter key when you are prompted to enter the password A message will confirm the password to be disabled Once the password is disabled the system will boot and you can enter Setup freely CMOS Setup Utility Copyright Award Software Standard CMO...

Page 65: ...MOS memory Typing N brigs you back to Setup utility CMOS Setup Utility Copyright Award Software Standard CMOS Features Frequency Voltage Control Advanced BIOS Features Load Fail Safe Defaults Advanced Chipset Features Load Optimized Defaults Integrated Peripherals Set Supervisor Password Power Man PnP PCI Con SAVE to CMOS and EXIT Y N Y PC Health Status Exit Without Saving Esc Quit Ç È Æ Å Select ...

Page 66: ...saving the modifications Typing N will return you to Setup utility CMOS Setup Utility Copyright Award Software Standard CMOS Features Frequency Voltage Control Advanced BIOS Features Load Fail Safe Defaults Advanced Chipset Features Load Optimized Defaults Integrated Peripherals Set Supervisor Password Power Man PnP PCI Con Quit Without Saving Y N N PC Health Status Exit Without Saving Esc Quit Ç ...

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Page 68: ...SBC8168 Socket 370 All in One CPU Card Series User s Manual 54 This page does not contain any information ...

Page 69: ...rrupt NMI depending on the settings made on jumper JP10 of SBC8168 Follow the steps below to enable and program the watchdog function of SBC8168 Start Un Lock WDT OUT 120H 0AH enter WDT function OUT 120H 0BH enable WDT function Set multiple 1 4 OUT 120 0NH N 1 2 3 or 4 Set base timer 0 F OUT 121 0MH M 0 1 2 F WDT counting re set timer OUT 121 0MH M 0 1 2 F IF No re set timer WDT time out generate ...

Page 70: ... 5 secs 25 secs 250 secs 500 secs 5 3 secs 30 secs 300 secs 600 secs 6 3 5 secs 35 secs 350 secs 700 secs 7 4 secs 40 secs 400 secs 800 secs 8 4 5 secs 45 secs 450 secs 900 secs 9 5 secs 50 secs 500 secs 1000 secs A 5 5 secs 55 secs 550 secs 1100 secs B 6 secs 60 secs 600 secs 1200 secs C 6 5 secs 65 secs 650 secs 1300 secs D 7 secs 70 secs 700 secs 1400 secs E 7 5 secs 75 secs 750 secs 1500 secs ...

Page 71: ...D 23 IOW 24 GND 25 IOR 26 GND 27 IOCHRDY 28 No connector 29 No connector 30 GND Default 31 Interrupt 32 No connector 33 SA1 34 No connector 35 SA0 36 SA2 37 HDC CS0 38 HDC CSI 39 HDD Active 40 GND Floppy Disk Connector CN2 Pin Description Pin Description Pin Description 1 GND 2 Reduce write current 3 GND 4 No connector 5 GND 6 No connector 7 GND 8 Index 9 GND 10 Motor enable A 11 GND 12 Drive sele...

Page 72: ...ter Select In 5 Data 3 18 GND 6 Data 4 19 GND 7 Data 5 20 GND 8 Data 6 21 GND 9 Data 7 22 GND 10 Acknowledge 23 GND 11 Busy 24 GND 12 Paper Empty 25 GND 13 Printer Select 26 Serial Ports Pin Assignment CN8 9 Pin Description 1 Data Carrier Detect DCD 2 Data Set Ready DSR 3 Receive Data RXD 4 Request to Send RTS 5 Transmit Data TXD 6 Clear to Send CTS 7 Data Terminal Ready DTR 8 Ring Indicator RI 9 ...

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