Appendix B: Chip Set & I/O Map
Page B5
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Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...
Page 2: ...3V The EPC 27 is an Intel DX4 processor One 72 pin 3 3V SIMM socket for memory sizes of 4 8 16 or 32 MB PC AT compatible keyboard interface reset switch and run LED Standard PC compatible peripherals...
Page 3: ...______________ 07 0266 00 June 1995 EPC 26A 27 Hardware Reference RadiSys Corporation 15025 S W Koll Parkway Beaverton OR 97006 503 646 1800 FAX 503 646 1850 Artisan Technology Group Quality Instrumen...
Page 4: ...ternational Business Machines Corporation Microsoft Windows and MS DOS are registered trademarks of Microsoft Corporation Intel and Intel486 are trademarks of Intel Corporation June 1995 Copyright 199...
Page 5: ...ranty and if the product is damaged during installation of the modifications this warranty does not cover repair or replacement This warranty in no way warrants suitability of the product for any spec...
Page 6: ...EPC 26A 27 Hardware Reference Page iv NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 7: ...pherals Sub Menu 14 Memory Shadow Sub Menu 14 EXM Menu 16 EXM Menu Entries for EPC 26A 27 17 EXM Menu Entries for Additional EXMs 17 Exit Menu 18 3 Theory of Operation 21 Processor and Coprocessor 21...
Page 8: ...ow Condition 41 SRAM Standard Memory Array 42 7 Support and Service 45 In North America 45 Technical Support 45 Bulletin Board 45 Repair Services 46 Warranty Repairs 46 Non Warranty Services 46 Arrang...
Page 9: ...Peak to Peak 5g max 5 2000 Hz Shock operating 30g 11 msec duration storage 50g 11 msec duration Electrical Power maximum 5V 1 2 A typical 5V 0 8 A Table 1 EPC Environmental and Electrical Specificatio...
Page 10: ...OTHER ELECTRONIC DEVICES IS SUSCEPTIBLE TO ESD DAMAGE ESD DAMAGE IS NOT ALWAYS IMMEDIATELY OBVIOUS IN THAT IT CAN CAUSE A PARTIAL BREAKDOWN IN SEMICONDUCTOR DEVICES THAT MIGHT NOT IMMEDIATELY RESULT I...
Page 11: ...in the BIOS setup However you can still press the F2 key to enter the BIOS setup screens even if the prompt is suppressed Use the up and down cursor arrow keys to move from field to field Use the righ...
Page 12: ...s field EPC 26A 27 Figure 2 1 Main Menu The fields in each menu and sub menu are explained below Additional help information is available in the help area on the BIOS setup screen System Time System D...
Page 13: ...able or disable various keyboard features including enabling the Numlock key enabling the key click and setting the keyboard auto repeat rate and delay The Numlock setting displays for this entry in t...
Page 14: ...I specifications Use the ENTER key to invoke this function Existing formatted disks must be set up using the same parameters that were used originally when the disk was formatted You must enter the sp...
Page 15: ...return to the Main Menu Boot Sequence Sub Menu The Boot Sequence Sub Menu allows you to change the boot sequence options The following displays PhoenixBIOS Setup Copyright 1992 94 Phoenix Technologies...
Page 16: ...ly First it determines where the floppy drive fits into the sequence however for simplicity here assume no A drive The BIOS starts by determining if an IDE controller is enabled If so this becomes the...
Page 17: ...or disable the floppy drive search during the boot To speed up booting you can disable the floppy check It is still possible to boot from the A drive even with the floppy check disabled The default is...
Page 18: ...ard If enabled the keyboard produces an audible click each time a key is pressed Keyboard auto repeat rate Use this option to set the auto repeat rate if holding a key down on the keyboard The rates a...
Page 19: ...elect Menu Enter Select Sub Menu F10 Previous Values Memory Shadow Large Disk Access Mode DOS Built in BIOS Extension Configuration BIOS Extension Base Address Flash ROMdisk Not Installed Figure 2 5 A...
Page 20: ...Extension Configuration BIOS Extension Base Address Flash ROMdisk Use this option to enable Flash memory disks on the EPC 26A 27 This must be selected for the Flash memory to appear as a drive The ba...
Page 21: ...evious Values Figure 2 6 Integrated Peripherals Sub Menu COM PORT COM PORT Use this option to enable or disable the COM1 and COM2 ports The default for COM1 is 3F8 and IRQ4 the default for COM2 is 2F8...
Page 22: ...gure 2 7 Memory Shadow Sub Menu About Shadow Memory Regions The shadow regions should be used only if an EXM module is installed in the system that contains a BIOS ROM Enabling shadowing for the regio...
Page 23: ...CMOS The EPC 26A 27 will configure the EXM bus according to the number of EXM slots selected The default slot configuration is for 12 slots 0 1 2 3 4 5 6 7 8 9 10 11 PhoenixBIOS Setup Copyright 1992 9...
Page 24: ...0 00 for the ID OB1 OB2 entries in that slot If the optional Flash SRAM is present use FD 01 00 for the ID OB1 OB2 entries in that slot EXM Menu Entries for Additional EXMs For any additional EXMs ins...
Page 25: ...tion for each remaining EXM expansion module to be installed Note that while most EXM hardware reference manuals depict a different setup BIOS from the EPC 26A 27 the ID OB1 OB2 information is valid A...
Page 26: ...addresses in the 300 33F range can be used 4 If the EXM needs to use upper memory addresses they must be in the 0C8000 0EFFFF range Exit Menu Use the options in this menu to save and exit or abandon...
Page 27: ...d The system boots with the old values Get default values Use this option if you need to reset the BIOS values to the original default values that were present before any other end users made changes...
Page 28: ...BIOS Configuration 2 2 Page 21 NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 29: ...emory soldered to the EPC Memory must be configured using a single SIMM module See the figure below Top Rear SIMM Socket Figure 3 1 SIMM Socket Location WARNING Many of the components used in this EPC...
Page 30: ...640 KB 00A0000 00BFFFFh Mapped to EXM expansion interface almost always used by a video controller as video RAM 00C0000 00C7FFFh Shadowed video BIOS if video is used write protected 00C8000 00DFFFFh...
Page 31: ...successfully but do not alter the data The BIOS also searches segment C8000h through DFFFFh for the existence of additional BIOS EPROMs Optional ROM extensions may be shadowed if so specified in the A...
Page 32: ...h the Flash formatting operation The jumpers which are located near the card edge and next to the SIMM socket are show below H2 Reserved for future use H3 Use to enable writing to flash H4 Do not use...
Page 33: ...specific video modes that write directly into the video RAM or that directly call video BIOS functions will fail Front Panel LED The EPC 26A 27 has one green LED on the front panel This RUN LED is lit...
Page 34: ...s will cause a watchdog event after approximately 512 ms if the application software does not reset the timer An I O read to address 815D resets the counter Bit 0 of register 815D enables an interrupt...
Page 35: ...ed as RESETIN Asserting this input low will reset the processor This is provided to allow remote reset to be implemented This is a full hardware reset The system will run the power on self tests and r...
Page 36: ...EPC 26A 27 Hardware Reference Page 28 3 3 NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 37: ...There are two COM ports on the EPC 26A 27 The COM1 serial port is an RS 232 DB 9 DTE connector It has the following drive capability VOL 5V min 3K load to GND and VOH 5V min 3K load to GND COM1 is def...
Page 38: ...rd Connector Pin out EXM Expansion Connector The EXM expansion connector on the rear of the EPC is a 116 pin cardedge connector The mating connector is an AMP 650090 1 or equivalent Pins A1 through A5...
Page 39: ...EPC cannot talk to EXM expansion interface Remove the video adapter Reinsert the video adapter and verify proper seating of the edge connector Verify that the cable pins are not bent and the cable is...
Page 40: ...These are messages generated by the BIOS and MS DOS that may be related to your hardware configuration BAD OR MISSING COMMAND INTERPRETER DOS Problem The DOS operating system cannot find the Command...
Page 41: ...n listed in the BIOS setup screen This may be due to incorrect entries in the BIOS setup screen or one or both drives may not be responding at power up Solution s Run the BIOS setup program Make sure...
Page 42: ...t be found Solution s If you have no floppy diskette drives enter the setup program and set both floppy drives to NONE If you are using a floppy drive s verify that both the floppy controller and the...
Page 43: ...r PS 2 keyboard If this is the case replace the keyboard with a PC AT style keyboard MISSING OPERATING SYSTEM BIOS Problem Although the system could read the hard disk and find the active partition th...
Page 44: ...skette in drive A and press any key NOT READY READING DRIVE DOS Problem This is usually caused by not fully inserting a diskette into the floppy drive Solution s Eject the floppy diskette and reinsert...
Page 45: ...roblem The battery backed TOD clock is incorrect Solution s Run the BIOS setup program to determine what is wrong and correct it If the error occurs repeatedly the EPC s battery has failed Artisan Tec...
Page 46: ...EPC 26A 27 Hardware Reference Page 38 5 5 NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 47: ...of Flash SRAM Address 8380 Middle Address Register Low Middle Bits 8 15 of Flash SRAM Address 8381 Middle Address Register High Middle Bits 16 23 of Flash SRAM Address 8382 Flash Data Access 8383 SRAM...
Page 48: ...s to be read or written The four address registers are write only The EPC 26A 27 s EXM 2A interface does not implement the High address register 8386 The I O address 8386 is reserved for future use Th...
Page 49: ...ss 8384 to read or write a byte of SRAM Address aliasing occurs when accessing the lower density SRAM chips This may be used by software to determine the size of memory installed The EPC 26A 27 uses a...
Page 50: ...8380 define LSWHIGHBYTE 0x8381 define MSWLOWBYTE 0x8382 define MSWHIGHBYTE 0x8386 define SRAMDATA 0x8384 UCHAR Slot 5 presumes Flash is in slot 5 void readsection UCHAR FAR target ULONG sramoffset UCH...
Page 51: ...TE USHORT sramoffset Write a section using the autoincrement feature for rinductor 0 rinductor BYTESPERSECTION rinductor outp SRAMDATA source outp 0x102 ob restore the option byte void main UCHAR test...
Page 52: ...EPC 26A 27 Hardware Reference Page 44 6 6 NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 53: ...r FAX by the next business day Technical Support Services are designed for customers who have purchased their products from RadiSys or a sales representative If your RadiSys product is part of a piece...
Page 54: ...version control make it more convenient to receive their original products back after repair Warranty Repairs Products under warranty see warranty information in the front of this manual will have ma...
Page 55: ...ts are available in a spares program There is a minimum billing charge associated with this program Arranging Service To schedule service for a product please call RadiSys Technical Support directly a...
Page 56: ...and engineering and a description of the suspected problem Any ancillary information that might be helpful with the debugging process will be appreciated Other Countries Contact the sales organization...
Page 57: ...Page A1 A A Appendix A Mechanical Dimensions Figure 8 EPC Mechanical Dimensions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 58: ...EPC 26A 27 Hardware Reference Page A2 A A NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 59: ...Page A1 A A Appendix A Mechanical Dimensions Figure 8 EPC Mechanical Dimensions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 60: ...EPC 26A 27 Hardware Reference Page A2 A A NOTES Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 61: ...ddress 007 Channel 3 count 008 Command status 009 DMA request 00A Command register R Single bit DMA req mask W 00B Mode 00C Set byte pointer R Clear byte pointer W 00D Temporary register R Master clea...
Page 62: ...ddr Functional group Usage 070 Real time clock RTC index reg NMI enable 071 RTC data register 0 seconds 1 seconds alarm 2 minutes 3 minutes alarm 4 hours 5 hours alarm 6 day of week 7 date of month 8...
Page 63: ...te pointer R Clear byte pointer W 0DA Temporary register R Master clear W 0DC Clear mode reg counter R Clear all DMA req mask W 0DE All DMA request mask Coprocessor Interface An integrated co processo...
Page 64: ...OM1 serial port Receiver transmitter buffer Baud rate divisor latch LSB 3F9 Interrupt enable register Baud rate divisor latch MSB 3FA Interrupt ID register 3FB Line control register 3FC Modem control...
Page 65: ...Appendix B Chip Set I O Map Page B5 B B Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 66: ...IRQ8 IRQ15 cascade through IRQ2 IRQ3 COM2 serial port IRQ4 COM1 serial port IRQ5 unassigned IRQ6 usually needed for floppy disk controller IRQ7 unassigned IRQ8 clock IRQ9 unassigned IRQ10 watchdog tim...
Page 67: ...0 unassigned 8 bit 1 unassigned 8 bit 2 usually needed for floppy disk 8 bit 3 unassigned 4 Channel 0 Channel 3 cascade through Channel 4 5 unassigned 16 bit 6 unassigned 16 bit 7 unassigned not conne...
Page 68: ...addition to the BB6 00 boot block file These files are automatically copied to the flash disk root directory when the disk is made bootable If these system files are not present an error message displ...
Page 69: ...command and various file attributes It is a requirement for the IO SYS and MSDOS SYS files to be hidden system and read only files in order for them to be bootable and or safe from accidental damage...
Page 70: ...device driver BB5 00 Boot block files for DOS 5 0 BB6 00 Boot block files for DOS 6 0 6 1 6 2 README TXT Disk contents decription plus any additional user information added after the manual was printe...
Page 71: ...dir parameter is optional for SRAM drive types Files can be written to an SRAM device using standard DOS copy commands COPY XCOPY after formatting it and loading the device driver For flash each file...
Page 72: ...ation on creating bootable images from non bootable disks The boot block file for N 5 is BB5 00 DOS 5 and the boot block file for N 6 is BB6 00 DOS 6 X The boot block files are supplied on the distrib...
Page 73: ...ot all flags are valid for every system The S B and N flags are not valid for SRAM drives and generate an error message when attempts are made to use these flags on SRAM Some examples of the XFORMAT i...
Page 74: ...g formatted Since the flash memory is represented to DOS as a fixed non removable disk DOS may have buffered data from the flash memory s files prior to its being formatted As a result you should rebo...
Page 75: ...get drive The SRAM driver can be loaded high to conserve conventional memory Use the following line under DOS 6 X DEVICEHIGH path SRAMDISK SYS slot SRAM data integrity may be jeopardized when power is...
Page 76: ...ARGET Explanation A version of COMMAND COM was found in the top directory of the srcdir Resolution Delete COMMAND COM from the srcdir directory and re invoke XFORMAT Error Message INSUFFICIENT SPACE O...
Page 77: ...M and EXM flash memory Resolution Rerun XFORMAT using the P osition flag to indicate which EXM slot to format Error Message NO SRAM MEMORY IN SPECIFIED SLOT Explanation The T S option was selected how...
Page 78: ...the F flag is F filename size The filename is specified and is followed by the file size in kilobytes Error Message UNABLE TO INITIALIZE FLASH DEVICE Explanation XFORMAT has determined that no flash...
Page 79: ...and FDISK COPY and XCOPY operate correctly to from the SRAM disk The SRAM and flash portions of the EPC are visible to the operating system as separate logical drives Applications that read the flash...
Page 80: ...damaged by a power failure during a previous BIOS update process Remote download requires a remote PC connected by a NULL modem to the EPC s COM1 port On a standard DB 9 connector the NULL modem shou...
Page 81: ...lename parameter Files are copied into flash memory from low to high memory addresses The files list must provide for the necessary files in the correct order and located at the correct offsets To hel...
Page 82: ...ext step Select N for no if you want to re check the NEW BAT contents go back to step 3 7 Each file name included in NEW BAT displays as the program executes 8 This message displays Update completed s...
Page 83: ...OS Parameters It is possible to use the NEWBIOS function to copy and restore CMOS parameters into a 4K parameter block on the flash chip This is useful if battery life becomes an issue or for backup T...
Page 84: ...Menu 18 EXM Setup Menu 16 Flash ROMdisk installation 13 floppy drive install 5 floppy drive search 10 IDE adapter sub menus 6 Integrated Peripherals sub menu 12 14 key click 11 keyboard auto repeat d...
Page 85: ...te 1 filter networks 1 Flash 39 flash chip 23 Flash memory 1 13 23 booting 9 Flash memory setup in BIOS 8 Flash ROM disk 15 Flash ROMdisk 12 Flash ROMdisk BIOS extension 13 flash write protection jump...
Page 86: ...ge frame 22 Parallel port 18 PARITY ERROR 36 Phoenix BIOS 1 3 Pico Power Redwood chip set 1 PicoPower Redwood chip set 21 Pin A57 27 POST Errors 10 power down transition 41 Power off Power on reset 27...
Page 87: ...ort 45 the PC architecture 21 thumbscrews 3 Time of day clock 1 TOD clock 23 36 37 Troubleshooting 31 V video BIOS 22 video controller 22 25 video RAM 22 25 W warm boot 27 Warranty Repairs 46 watchdog...
Page 88: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...
