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SBC-400

Half-size 486 All-in-One CPU Card

with Cache

Summary of Contents for SBC-400

Page 1: ...SBC 400 Half size 486 All in One CPU Card with Cache ...

Page 2: ...VICE PURSUANT TO PART 15 OF THE FCC RULES THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINTST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT THIS EQUIPMENT GENERATES USES AND CAN RADIATE RADIO FREQENCY ENERGY AND IF NOT INSTATLLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS OPERATION OF T...

Page 3: ...or its use nor for any infringements upon the rights of third parties which may result from its use Acknowledgements ALI is a trademark of Acer Laboratories Inc AMD is a trademark of Advanced Micro Devices Inc AMI is a trademark of American Megatrends Inc Cyrix is a trademark of Cyrix Corporation IBM PC AT PS 2 and VGA are trademarks of International Business Machines Corporation Intel and Pentium...

Page 4: ... pin mini DIN dual outlet adapter for keyboard and PS 2 mouse 1 Hard disk drive IDE interface cable 40 pin 1 Floppy disk drive interface cable 34 pin 1 Parallel port adapter 26 pin PC 104 Expansion connector converter pin headers PC 104 Module mounting supports If any of these items are missing or damaged contact your distributor or sales representative immediately ...

Page 5: ... Removing a CPU 13 Installing a CPU 14 CPU type select JP2 JP3 JP4 15 CPU Vcc select JP5 JP6 16 CPU clock select JP7 JP8 16 Installing DRAM SIMMs 17 Installing SIMMs 17 Removing SIMMs 17 Selecting cache memory size 18 Cache memory select JP1 18 IDE hard drive connections CN1 19 Connecting the hard drive 19 Floppy drive connections CN2 21 Connecting the floppy drive 21 Parallel port CN3 22 Installi...

Page 6: ...hdog timer programming 30 External switches and LEDs 32 Power LED and keylock JP12 32 External speaker JP13 32 Reset switch JP14 33 Turbo LED JP15 33 Turbo switch JP17 33 Chapter 3 AMI WinBIOS Setup 35 General information 36 Starting WinBIOS setup 36 WinBIOS main menu 36 Using a mouse with WinBIOS setup 37 Using the keyboard with WinBIOS setup 37 Setup 38 Standard Setup 38 Advanced Setup 39 Chipse...

Page 7: ...Chapter 3 Cont d Default 52 Original 52 Optimal 52 Fail Safe 52 Exiting WinBIOS 53 Appendix A Watchdog Timer Demo Program 55 Appendix B Installing PC 104 Modules 59 ...

Page 8: ...Chapter 1 General Information 1 1 General Information This chapter gives background informa tion on the SBC 400 Sections include Card specifications Board layout C H A P T E R ...

Page 9: ...igh speed local bus IDE controller This controller supports through ATA PIO mode 3 and mode 4 hard disks which enable data transfer rates of over 11 MB second It connects up to two IDE devices including large hard disks CD ROM drives tape backup drives etc The built in enhanced IDE controller provides a 4 layer 32 bit posted write buffer and a 4 layer 32 bit read prefetch buffer to boost IDE perfo...

Page 10: ...ard disk drive interface floppy drive controller One RS 232 and one RS 232 422 485 selectable serial port uses 16C550 UARTs with 16 byte FIFO One bi directional parallel port 32 to 140o F 0 to 60o C operating temperature Watchdog timer software programmable from 2 to 32 seconds 16 steps 2 seconds per step On board keyboard connector and or PS 2 mouse IDE HDD auto detection Connectors for PC 104 mo...

Page 11: ...s mode 3 and mode 4 hard disks minimum data transfer rate of 11 1 MB sec Floppy disk drive interface Supports up to two floppy disk drives 5 25 360 KB and 1 2 MB and or 3 5 720 KB 1 44 and 2 88 MB Bi directional parallel port SPP EPP ECP standards Serial ports One serial RS 232 port and one serial RS 232 RS 422 RS 485 port jumper selectable Both with 16C550 UARTs with 16 byte FIFO buffer IRQ SELEC...

Page 12: ...PS 2 Mouse connector Shared with keyboard connector Bus speed 8 MHz System performance 325 MHz in 80486DX4 100 Landmark V2 0 Max power requirements 5 V 2 5 A Power supply voltage Single 5 V 4 75 V to 5 25 V Operating temperature 32 to 140o F 0 to 60o C must use a cooling fan when using a DX4 100 CPU or above Board size 7 3 L x 4 8 W 185 mm x 122 mm Board weight 1 2 lbs 0 5 Kg Green Function Yes EM...

Page 13: ...E REV A1 S M C FDC37C665 ODIN O E C 1 2 C 8 8 7 ALI M 1 4 8 9 ALI M 1 4 8 7 1 6 V 8 1 4 3 1 8 2 4 M H z S C 4 6 4 IMI M A X 2 1 3 M A X 2 1 3 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M M E G A K B AMI BIOS ...

Page 14: ...Chapter 1 General Information 7 Card dimensions Units mm PC 104 Module 185 00 178 00 98 50 122 00 80 65 73 66 26 00 19 00 19 50 D4x4 ...

Page 15: ...8 SBC 400 User s Manual ...

Page 16: ...s chapter tells how to set up the SBC 400 hardware including instructions on setting jumpers and connecting peripher als switches and indicators Be sure to read the all safety precautions before you begin the installation procedure C H A P T E R ...

Page 17: ... JP1 Cache memory select JP2 3 4 CPU type select JP5 6 CPU Vcc select JP7 8 CPU clock select JP9 Serial port IRQ select JP10 Parallel port DRQ select JP11 Parallel port DACK select JP12 Power LED and keylock JP13 External speaker JP14 Reset switch JP15 Turbo LED JP17 Turbo switch JP23 39 RS 232 422 485 select JP38 Watchdog timer time out signal select CN1 Enhanced IDE connector CN2 FDD connector C...

Page 18: ...6 4 IMI M A X 2 1 1 M A X 2 1 1 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M 3 2 K 8 C A C H E R A M M E G A K B AMI BIOS Locating jumpers and connectors J1 J P 1 2 1 3 CN3 JP23 JP7 8 CN2 CN1 CPU S o c k e t JP1 S I M M S o c k e t CN5 CN6 JP10 JP9 JP5 6 JP4 JP3 JP2 CN4 C O M B COMA JP39 JP38 Data RAM C a c h e Tag RAM C a c h e ...

Page 19: ...mper you connect the pins with the clip To open a jumper you remove the clip Sometimes a jumper will have three pins labeled 1 2 and 3 In this case you would connect either pins 1 and 2 or 2 and 3 The jumper settings are schematically depicted in this manual as follows A pair of needle nose pliers may be helpful when working with jumpers If you have any doubts about the best hardware configuration...

Page 20: ... a static shielded bag when they are not in the chassis Installing the CPU The SBC 400 CPU card supports most 486 CPUs The system s performance depends on the CPU you choose You can install or upgrade the CPU in the board s PGA socket by following the procedures outlined below If your system has an existing CPU you need to remove it before installing the new CPU Removing a CPU 1 Disconnect power f...

Page 21: ...her components 2 Carefully align the CPU so that it is parallel to the socket Make sure that the notch on the corner of the CPU matches the notch on the inside of the socket 3 Gently push the CPU into the socket There will probably be a small gap between the CPU and the socket even when it is fully seated DO NOT USE EXCESSIVE FORCE When you install a new CPU you may have to adjust other settings o...

Page 22: ...BM SGS Cyrix IBM SGS TI486DX DX2 486SX 5x86 486DX2 AMD X5 133 150 AMD DX4 Enhanced AMD DX4 Standard AMD DX2 AMD X5 160 JP 2 3 4 Pin 1 2 3 4 5 6 7 8 9 Pin 1 2 3 4 5 6 7 8 9 JP 2 3 4 Pin 1 2 3 4 5 6 7 8 9 JP 2 3 4 JP 2 3 4 Pin 1 2 3 4 5 6 7 8 9 Pin 1 2 3 4 5 6 7 8 9 JP 2 3 4 JP 2 3 4 Pin 1 2 3 4 5 6 7 8 9 Pin 1 2 3 4 5 6 7 8 9 Pin 1 2 3 4 5 6 7 8 9 JP 2 3 4 JP 2 3 4 JP 2 3 4 Pin 1 2 3 4 5 6 7 8 9 JP...

Page 23: ...roper jumper settings for their respective Vcc CPU Vcc select JP5 JP6 5 0 V 3 3 V 3 45 V 3 6 V 4 0 V JP5 JP6 CPU clock select JP7 JP8 JP7 and JP8 are used to synchronize the CPU clock with the CPU type Set the CPU clock according to the base CPU speed CPU clock select JP7 JP8 25 MHz 33 MHz 40 MHz 50MHz 1 1 1 1 1 1 1 1 1 1 ...

Page 24: ...ts at both ends of the socket until the module is upright and the retaining clips at both ends of the module click into place When positioned correctly the pins on top of the vertical posts should corre spond to the circular holes on the ends of the module 3 Repeat steps 1 and 2 for each module you install Removing SIMMs If you need to remove a SIMM follow the procedures below 1 Supporting the SIM...

Page 25: ...nsists of four SRAM chip sockets each of which accepts one Tag chip All SRAM chips must have a speed of 20 ns or faster The table below shows the possible cache configurations Cache Configuration Cache size Tag RAM Data RAM 128 KB one 32 K x 8 four 32 KB x 8 SRAMs 256 KB one 32 K x 8 four 64 KB x 8 SRAMs 512 KB one 32 K x 8 four 128 K x 8 SRAMs Cache memory select JP1 When the cache size changes y...

Page 26: ...e gray 1 Connect one end of the cable to CN1 on the CPU card Make sure that the red or blue wire corresponds to pin 1 on the connector which is labeled on the board on the right side 2 Plug the other end of the cable to the Enhanced IDE hard drive with pin 1 on the cable corresponding to pin 1 on the hard drive See your hard drive s documentation for the location of the connector Unlike floppy dri...

Page 27: ...ble lists the pin numbers and their respective signals Enhanced IDE connector CN1 Pin Signal Pin Signal 1 Reset 2 GND 3 D7 4 D8 5 D6 6 D9 7 D5 8 D10 9 D4 10 D11 11 D3 12 D12 13 D2 14 D13 15 D1 16 D14 17 D0 18 D15 19 GND 20 N C 21 N C 22 GND 23 IOW 24 GND 25 IOR 26 GND 27 IORDY 28 BALE 29 N C 30 GND 31 IRQ 32 I O CS16 33 A1 34 N C ...

Page 28: ...nnector usually used for 3 5 drives and a printed circuit board connector usually used for 5 25 drives Connecting the floppy drive 1 Plug the 34 pin flat cable connector into CN2 on the CPU card 2 Attach the appropriate connector on the other end of the cable to the floppy drive s You can use only one connector in the set The set on the end after the twist in the cable connects to the A floppy The...

Page 29: ...bracket The retaining bracket installs at an empty slot in your system s chassis It provides an external port that allows your parallel peripheral to access to the card s parallel port connector 1 Find an empty slot in your chassis 2 Unscrew the plate that covers the end of the slot 3 Screw in the bracket in place of the plate 4 Next attach the flat cable connector to CN3 on the CPU card Wire 1 of...

Page 30: ...Error 16 Init printer 17 Select input 18 25 GND Parallel port DRQ JP10 and DACK JP11 You can select the parallel port DRQ and DACK by setting JP10 and JP11 respectively The following charts show the available options Parallel port DRQ selection JP10 and DACK selection JP11 1 1 ...

Page 31: ...nnector CN4 In single board computer non passive backplane applications you will need to connect power directly to the SBC 400 board using CN4 This connector is fully compatible with the standard PC power supply connector See the following table for its pin assignments Power connector CN4 Pin Function 1 N C 2 5 VDC ...

Page 32: ...applications A second 6 pin mini DIN connector J1 on the card mounting bracket supports single board computer applications The card comes with an adapter to convert the 6 pin mini DIN connector used for the mouse to the standard DIN connector for the key board Keyboard connector CN7 Pin Function 1 K B clock 2 K B data 3 N C 4 GND 5 5 VDC Keyboard or PS 2 mouse connector J1 Pin Function 1 K B data ...

Page 33: ...r COMB JP23 JP39 RS 232 serial ports are widely used for external input output devices The RS 422 and RS 485 however are popular for industrial and laboratory applications because they offer high noise resistance and long range communication up to 4000 ft 1200 m The RS 422 is communly used for two way communication between two devices where as RS 485 is used for communication between a single mast...

Page 34: ...ort connectors RS 232 COMA COMB RS 422 485 COMB Pin Signal Pin Signal 1 DCD 1 TX DTE 2 RX 2 TX DTE 3 TX 3 RX DTE 4 DTR 4 RX DTE 5 GND 5 Ground 6 DSR 6 RTS 7 RTS 7 RTS 8 CTS 8 CTS 9 RI 9 CTS RS 422 signal wiring RS 422 is used for long distance point to point connections RS 422 originally used four wires for one way communication with devices such as display terminals or printer but was later adopt...

Page 35: ...al Pin Signal 1 TX 4 RX 2 TX 3 RX 3 RX 2 TX 4 RX 1 TX 5 Ground 5 Ground 6 RTS 9 CTS 7 RTS 8 CTS 8 CTS 7 RTS 9 CTS 6 RTS RS 485 signal wiring In a typical RS 485 application the host device requests data from a slove module then listens for the response The host transmits and receives data on the same pair of wires Software handles the flow control no other wires are needed Pin assignments appear i...

Page 36: ...n Signal 1 TX Data 1 TX 4 RX 4 RX 2 TX Data 2 TX 3 RX 3 RX 5 Ground 5 Ground Serial ports IRQ select JP9 You can select the serial ports IRQs by setting JP9 as follows Serial ports IRQ selection JP9 COMA COMB JP9 setting IRQ3 IRQ4 IRQ4 IRQ3 ...

Page 37: ...her reset the CPU or signal an interrupt on IRQ15 Watchdog timer time out signal select JP38 Reset CPU IRQ15 Watchdog timer programming The watchdog timer must be programmed to write to I O port address 443 at an interval shorter than the timer s preset interval The timer s interval has a tolerance of 5 so you should program an instruction that will refresh the timer before a time out occurs 1 2 3...

Page 38: ...dog and set up its time out interval 2 Write to I O port 043 Hex and any random value This will in turn disable the watchdog timer The watchdog timer out interval can be set at 16 levels between 2 and 32 seconds The following table shows the Hex values for the appropriate time out intervals Watchdog timer delay values Delay time Value Hex Delay time Value Hex 0 2 F 16 18 7 2 4 E 18 20 6 ...

Page 39: ...keyboard In this state the PC will not respond to any input This is useful if you don t want anyone to change or stop a running program Simply connect the switch between Pins 4 and 5 The pin assignments appear in the following table Power LED and keylock JP12 Pin Function 5 LED Power 5 V 4 No Connector 3 Ground 2 Keyboard lock 1 Ground External speaker JP13 The CPU card has its own buzzer You can ...

Page 40: ...d 2 Reset Turbo LED JP15 You can connect a LED indicator across JP15 to indicate when the CPU is in Turbo mode Marks on the circuit board indicate LED polarity the pin on the left is positive Turbo LED JP15 Pin Function 1 Turbo 2 Ground Turbo switch JP17 You can connect a switch across the pins of JP17 to change the CPU speed between Turbo and non Turbo mode When you leave the pins open the CPU ca...

Page 41: ...34 SBC 400 User s Manual ...

Page 42: ...Chapter 3 AMI WinBIOS setup 35 3 AMI WinBIOS Setup This chapter describes the card s diagnos tic tests and how to set BIOS configura tion data in a Windows environment C H A P T E R ...

Page 43: ... in CMOS RAM Unlike conventional BIOS setup programs Win BIOS features a graphical user interface that is easy to use Starting WinBIOS setup As POST executes the following appears Hit DEL if you want to run SETUP Press DEL to run WinBIOS setup WinBIOS main menu The WinBIOS setup screen appears as follows ...

Page 44: ...stroke Function tab Move to the next window or field è ç é ê Move to the next field to the right left above or below ENTER Select in the current field Increments a value Decrements a value ESC Closes the current operation and return to previous level PgUp Returns to the previous page PgDn Advances to the next page Home Returns to the beginning of the text End Advances to the end of the text ALT H ...

Page 45: ...n in the Standard setup The current values for each category are displayed Enter new values through the keyboard Floppy A Floppy B Select these icons to configure the type of floppy drive that is attached to the system 360 KB 5 1 2 MB 5 720 KB 3 1 44 MB 3 and or 2 88 MB 3 The settings have not been pre installed Master Disk Slave Disk Select these icons to configure the hard disk type you are usin...

Page 46: ... 20 24 30 characters per second System Keyboard This option specifies if error messages are displayed if a keyboard is not attached This permits you to configure workstations with no keyboards The settings are Absent or Present Primary Display Select this icon to configure the type of monitor attached to the computer The settings are Monochrome Color 40 x 25 Color 80x25 VGA PGA EGA or Not Installe...

Page 47: ...bled Extended BIOS RAM Area Specify in this option if the top 1 KB of the system programming area beginning at 639 K or 0 300 in the system BIOS area in low memory will be used to store hard disk information The settings are Top 1 K or 0 300 Wait for F1 If Any Error WinBIOS POST runs system diagnostic tests that can generate a message followed by Press F1 to continue If this option is enabled WinB...

Page 48: ...enabled If Internal is chosen only the internal cache memory in the Pentium CPU is enabled If Disabled is chosen all cache memory in the Pentium CPU is disabled External Cache Mode This option selects the type of caching algorithm used by WinBIOS and the computer for L2 external secondary cache memory The settings are Wr Thr Write Through or Wr Back Write Back Turbo Switch function When this optio...

Page 49: ...e settings are Absent NoShadow or Shadow The ROM area that is not used by ISA adapter cards will be allocated to PCI adapter cards Auto KeyLock Timeout This option sets the timeout value for the WinBIOS AutoKeyLock feature If Password support is enabled AutoKeyLock automatical ly locks the keyboard and mouse if there has been no system activity for the length of time specified in this option The s...

Page 50: ...hown below The following is a list options offered by Chipset Setup Chipset setup options Function Options Auto Configuration Function Disabled Enabled 7 16 CPU Bus Speed 3 CPU Bus Speed 4 CPU Bus Speed 5 CPU Bus Speed 6 CPU Bus Speed 8 DRAM Read Timing Slow Normal Faster Fastest DRAM Write Timing Slow Normal Faster Fastest SRAM Read Timing 2 1 1 1 3 1 1 1 3 2 2 2 4 2 2 2 ...

Page 51: ...dden Refresh Disabled Enabled Cyrix CPU L1 Cache Mode WT Write through WB Write back ISA I O Recovery Disabled Enabled CPU to PCI Write Buffer Disabled Enabled Byte Merge Disabled Enabled Fast Back to Back Disabled Enabled C x 5 x 86 Linear Wrapped Mode Disabled Enabled PCI IDE Trigger Type Edge Level ...

Page 52: ... 45 Power Management Setup As part of the Green function the Power Management setup offers options to help reduce power consumption To see the the options in this group choose the Power Mgmt icon from the WinBIOS Setup main menu ...

Page 53: ...ttings are ignored Any serial port parallel port floppy controller or IDE Integrated Drive Electron ics controller on an adapter card in an expansion slot is configured before onboard I O In addition WinBIOS also attempts to avoid IRQ conflicts If the offboard serial ports are configured to specific starting I O ports via jumper settings WinBIOS configures the onboard serial ports to avoid conflic...

Page 54: ...abled Onboard IDE This option enables the use of the IDE controller on the mother board if installed The settings are enabled or Disabled First Serial Port Address IRQ4 is used for the first serial port COM1 This option enables serial port 1 on the motherboard if installed The settings are 2E8h Second Serial Port Address IRQ3 is used for the second serial port COM2 This option enables the serial p...

Page 55: ...y detected and reported to the Hard Disk Drive C screen in Standard Setup so you can easily configure drive C Detect D If drive D is an IDE drive the hard disk drive parameters for drive D are automatically detected and reported to the Hard Disk Drive D screen in Standard Setup so you can easily configure drive D Color Set This option sets the WinBIOS Setup screen colors ...

Page 56: ...igured so that all users must enter a password every time the system boots or when WinBIOS Setup is executed The following screen appears when you select the password icon You can enter a password by typing the password on the keyboard selecting each letter via the mouse selecting each letter via the pen stylus pen access must be customized for each specific hardware platform ...

Page 57: ...ord you must drain CMOS RAM and reconfigure the system Changing a password 1 Select the Password icon from the Security section of the WinBIOS Setup main menu 2 Enter the password and press ENTER The screen does not display the characters entered 3 After the new password is entered retype the new password as prompted and press ENTER If the password confirmation is incorrect an error message appear...

Page 58: ...or of the hard disk drive The settings are Enabled or Disabled If enabled the following appears when a write is attempted to the boot sector You may have to type N several times to prevent the boot sector write Boot Sector Write Possible VIRUS Continue Y N _ The following is displayed after any attempt to format any cylinder head or sector of any hard disk drive via the BIOS INT 13 Hard Disk Drive...

Page 59: ...resent in WinBIOS Setup when you first began this WinBIOS Setup session Optimal You can load the optimal default settings for the WinBIOS Setup options by selecting the Optimal icon The Optimal default settings are best case values that should optimize system performance If CMOS RAM is corrupted the Optimal settings are loaded auto matically Fail Safe You can load the Fail Safe WinBIOS Setup optio...

Page 60: ...BIOS setup 53 Exiting WinBIOS You can exit WinBIOS by pressing the ESC key while in theWinBIOS main menu screen The following screen appears Select the option you desire and the system will continue its bootup sequence ...

Page 61: ...54 SBC 400 User s Manual ...

Page 62: ...Appendix A Watchdog Timer Demo Program 55 A Watchdog Timer Demo Program The following demo program illustrates the programming steps required to enable set and disable the watchdog timer A P P E N D I X ...

Page 63: ...l Sec dog dog 2 Convert time out interval to designated Hex dog 15 dog outportb 0x443 dog Enable watchdog timer Setup screen display format gotoxy 15 11 printf Now enable watchdog gotoxy 15 12 printf You can put keyboard reset or disable watchdog gotoxy 15 13 printf 1 Reset watchdog gotoxy 15 14 printf 2 Disable watchdog gotoxy 15 15 printf 3 Return to O S Read key pressed while 1 if kbhit inkey g...

Page 64: ...delay run_time run_time 1 Display time elapsed gotoxy 45 11 printf 2d 1d sec run_time 10 run_time 10 USER FUNCTION LIBRARY void mydelay void Delay program Delay 109 89ms 18 2Hz 2 clock_t start end start clock end start while end start 2 end clock ...

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Page 66: ...Appendix B Installing PC 104 Modules 59 B Installing PC 104 Modules This appendix gives instructions for installing PC 104 module A P P E N D I X ...

Page 67: ... and simple operation The following steps show how to mount the PC 104 modules Step 1 Remove the SBC 400 from your system paying particular attention to the safety instructions already mentioned above Step 2 Make any jumper or link changes required to the CPU card now Once the PC 104 module is mounted you may have difficulty in accessing these Step 3 Normal PC 104 modules have male connectors and ...

Page 68: ...essing the module firmly but carefully onto the mounting connectors Step 5 Secure the PC 104 module onto the CPU card using the four mounting spacers and srews PC 104 Module Mounting Diagram PC 104 Module SBC 350A CPU Card PC 104 Mounting Adaptor PC 104 Mounting Support Male Female Male Female Male 400 ...

Page 69: ...62 SBC 400 User s Manual PC 104 module dimensions inches 5 3 500 3 775 3 575 0 200 0 0 0 200 3 550 3 350 0 200 3 575 3 250 ...

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