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SBC-350A Half-size All-In-One 386SX-40 CPU Card.
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Copyright Notice This document is copyrighted, 1996. All rights are reserved. The original company reserves the right to make improvements to the products described in this manual at any time without notice.
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Contents Chapter 1 Hardware configuration .......................... 1 Introduction ............................................................................ 2 Specifications .........................................................................
Chapter 4 Power-up ................................................ 2 3 Startup procedur e ................................................................ 24 Chapter 5 BIOS diagnostics and SETUP ................... 25 POST (Power On Self T ests) ....
Chapter 1 Hardware Configuration 1 1 Hardware Configuration This chapter gives background informa- tion on the SBC-350A. It then shows you how to configure the card to match your application and prepare it for installation into your PC.
2 SBC-350A User's Manual Introduction The half-size SBC-350A comes equipped with a 80386SX-40 CPU. Also included on-board are two serial RS-232 ports, a bi-directional parallel port, an IDE hard disk drive interface, a floppy disk controller and a watchdog timer .
Chapter 1 Hardware Configuration 3 Specifications å System • CPU : 80386SX-40 MHz, 80486SLC-33 MHz • Bus interface : ISA (PC/A T) bus • System performance : 51.
4 SBC-350A User's Manual • Bi-directional parallel por t : Configurable to LPT1, LPT2, LPT3 or disabled. Standard female DB-25 connector provided • Serial ports : Dual RS-232 serial ports with 16C550 compatible UAR T s (16-byte FIFO for speeds up to 115 Kbps).
Chapter 1 Hardware Configuration 5 CN1 J1 CN3 CN4 CN5 SBC-350A HALF-SIZE ISBC PC-386SX-40 REV:.A1 SMC FDC37C665 ODIN OEC12C887 ALI M1217 14.318 24MHz MAX211 MAX211 TM AMIKEY -2 AMERICAN MEGATRENDS AMI.
6 SBC-350A User's Manual Jumpers and connectors Connectors on the board link it to external devices such as hard disk drives, a keyboard or PC/104 modules. In addition, the board has a number of jumpers which you use to configure it for your application.
Chapter 1 Hardware Configuration 7 Safety precautions Follow these simple precautions to protect yourself from harm and your PC from damage. 1. T o avoid electric shock always disconnect the power from your PC chassis before you work on it. Don’t touch any components of the CPU card or other cards while the PC is on.
8 SBC-350A User's Manual ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ How to set jumpers Y ou configure your card to match the needs of your application by setting jumpers. A jumper is the simplest kind of electric switch.
Chapter 1 Hardware Configuration 9 Card Dimensions Unit = mm PC/104 Module 185.00 178.00 98.50 122.00 80.65 73.66 26.00 19.00 19.50 D4x4.
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Chapter 2 Installation 11 2 Installation This chapter gives a general procedure for installing your CPU card into an PC chassis with an A T-compatible passive backplane.
12 SBC-350A User's Manual Initial Inspection Before you begin installing your card, please make sure that the following materials have been shipped: • 1 SBC-350A CPU card • 1 6-pin mini-DIN k.
Chapter 2 Installation 13 Caution! Always ground yourself to remove any static charge before touching the CPU card. Modern electronic devices are very sensitive to static electric charges.
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Chapter 3 Connecting peripherals 15 CHAPTER 3 Connecting peripherals This chapter tells how to connect periph- erals, switches and indicators to the SBC- 350A board. Y ou can access most of the connectors from at the top of the board while it is installed in the chassis.
16 SBC-350A User's Manual SBC-350A Card Connectors The following table lists the connectors on the SBC-350A. See Chapter 1 for help locating the connectors.
Chapter 3 Connecting peripherals 17 Attach the single 34-pin flat-cable connector to CN4 on the CPU card. For help finding the connector , see Chapter 1. Wire number 1 on the cable is red or blue, the other wires are gray . Make sure that the red wire corresponds to pin one on the connector (on the right side).
18 SBC-350A User's Manual Connect the first hard drive to the other end of the cable. W ire one on the cable should also connect to pin one on the hard drive connector . Y ou may have difficulty determining the pin number . Look for a number printed on the drive circuit board.
Chapter 3 Connecting peripherals 19 External switches and indicators Next you may want to install external switches to monitor and control your CPU card. These features are completely optional — install them only if you need them. Reset switch (J1) Y ou can connect an external switch to easily reset your computer .
20 SBC-350A User's Manual SBC power connector (CN9) In single-board-computer (non-passive-backplane) applications you will need to connect power directly to the SBC-350A board using connector CN9. This connector is fully compatible with the standard PC power supply connector (P8).
Chapter 3 Connecting peripherals 21 RS-232 connections (CN10, CN11) Different devices implement the RS-232 standard in dif ferent ways. If you are having problems with a serial device, be sure to check the pin assignments for the connector .
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Chapter 4 Power-up 23 4 Power-up After you have set the jumpers (Chapter 1), installed SIMMs (Appendix B), installed the card (Chapter 2) and made all external connections (Chapter 3), you are ready to power-up your system.
24 SBC-350A User's Manual Startup Procedure Follow the startup procedure outlined in the manual for your chassis. When you start your system, the BIOS will test the hardware and check the system configuration against the values stored in its CMOS memory .
Chapter 5 BIOS diagnostics and setup 25 CHAPTER 5 BIOS diagnostics and SETUP This chapter describes the card’ s diagnos- tic tests and how to set BIOS configura- tion data.
26 SBC-350A User's Manual POST (Power On Self Tests) Whenever you start up your system, the CPU card runs a series of programs stored in an on-board ROM chip. These programs are divided into two stages: System test and initialization These routines test and initialize board hardware.
Chapter 5 BIOS diagnostics and setup 27 3. The CMOS memory has lost power and the configuration information has been erased. The SBC-350A ’ s CMOS memory has integral lithium battery backup. The battery backup should last ten years in normal service, but when it finally runs down, you will need to replace the com- plete unit.
28 SBC-350A User's Manual BIOS Setup Main Menu Y ou use the following keys to control the BIOS SETUP program: ESC : Exit to previous screen ARROW KEYS : Moves the cursor to highlight the desired configuration option P AGEUP/P AGEDOWN/CTRL-P AGEUP/CTRL-P AGE- DOWN : Cycles through the configuration options for the highlighted feature.
Chapter 5 BIOS diagnostics and setup 29 Improper Use of Setup may Cause Problems!! If System Hangs,.....Enter Setup by pressing the <DEL> key Do any of the following After Entering Setup (i) Alt.
30 SBC-350A User's Manual Daylight Savings : Disabled or Enabled Hard Disk C: and Hard Disk D: The BIOS supports 46 standard hard disk sizes and layouts. If your hard disk matches one of these types (shown below), highlight the number blank (for the appropriate drive, C: or D:) and press <PgDn> until the correct number appears.
Chapter 5 BIOS diagnostics and setup 31 23 306 4 0 336 17 1 0 MB T ype Cyln Head WPcomp LZone Sect Size 24 925 7 0 925 17 5 4 MB 25 925 9 65535 925 17 6 9 MB 26 754 7 754 754 17 44 MB 27 754 1 1 65535.
32 SBC-350A User's Manual Heads : This is the number of heads found in the specified drive type. WPcom : WPcom is the read delay circuitry which takes into account the timing differences between the inner and outer edges of the surface of the disk platter .
Chapter 5 BIOS diagnostics and setup 33 unreliable. From the main menu highlight the Advanced CMOS Setup option and press <ENTER>. Press any key to clear the warning screen. Features The following chart lists card settings which you can change in Advanced CMOS Setup.
34 SBC-350A User's Manual Floppy Drive Seek At Boot Enabled (default) Disabled System Bootup Sequence A:, C: (default) C:, A: System Boot Up CPU Speed High (default) Low T urbo Switch Function En.
Chapter 5 BIOS diagnostics and setup 35 Enabled IDE Controller Enabled (default) Disabled Floppy Controller Enabled (default) Disabled After you have made your configurations changes, press <ESC> to return to the main menu. Advanced CHIPSET Setup Advanced CHIPSET Setup controls the ALI-1217-40 chipset's configuration registers.
36 SBC-350A User's Manual Enable 16-bit ISA Cycle Insert W ait 0 w/s (default) 1 w/s Slow Refresh Disable Enable (default) Refresh T ype CAS/RAS (default) RAS only IO Recovery Disable (default) Enable On Chip I/O Recovery Disable (default) Enable I/O Recover Period Define 0 (default) .
Appendix A Programming the watchdog timer 37 A Programming the watchdog timer The SBC-350A is equipped with a 15 level watchdog timer that resets the CPU if processing comes to a standstill for whatever reason. The time-out interval is software programmable for periods of 2 to 30 seconds.
38 SBC-350A User's Manual Introduction T o utilize the watchdog timer, you must write a program which writes to I/O port address 443 (hex) at regular intervals. The first time your program writes to the port, it enables the watchdog timer and sets the time-out interval.
Appendix A Programming the watchdog timer 39 Watchdog Timer Delay Values Delay Time V alue (Hex) Delay Time V alue (Hex) 0 ~ 2 E 16 ~ 18 6 2 ~ 4 D 18 ~ 20 5 4 ~ 6 C 20 ~ 22 4 6 ~ 8 B 22 ~ 24 3 8 ~ 10 .
40 SBC-350A User's Manual while(1){ if(kbhit()){ inkey=getch(); switch(inkey){ case ‘1’: /* Reset Watchdog timer */ gotoxy(15,11);printf(“Now enable watchdog timer!”); outportb(0x443,dog).
Appendix B Upgrading 41 B Upgrading This appendix gives instructions for increasing the capabilities of your CPU card. It covers: • DRAM memory installation (SIMMs) • CPU upgrading • Installing .
42 SBC-350A User's Manual Installing DRAM (SIMMs) Y ou can install anywhere from 1 MB to 16 MB of on-board DRAM memory using 256 KBx9, 1 MBx9 or 4 MBx9 SIMMs (Single In-line Memory Modules). Access time should be 70 ns or less. Memory installs in one bank composed of four SIMM sockets.
Appendix B Upgrading 43 CPU upgrading This section tells how to upgrade the card's CPU. Y ou can upgrade your SBC-350A to a higher powered 486SLC-33 CPU at any time. Simply remove the old 386SX CPU, install the new 486SLC-33 CPU and short/open the appropriate solder pads for the CPU type and speed.
44 SBC-350A User's Manual valuable slots. Modules include: • PCM-3510 Super VGA Module • PCM-3520 Flat-panel/CR T VGA Module • PCM-3410 Super I/O Module • PCM-3810 Solid-state Disk Module.
Appendix B Upgrading 45 PC/104 Module SBC-350A CPU Card PC/104 Mounting Adaptor PC/104 Mounting Support Male Female Male Female Male 3.500 3.775 3.575 0.200 0 0 0.200 3.550 3.350 0.200 3.575 3.250 PC/104 Module Mounting Diagram Step5 Secure the PC/104 module onto the CPU card using the four mounting spacers and srews.
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