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ELTEC EUROCOM 238 Hardware Manual

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EUROCOM
238
Hardware Manual
Revision 1A

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Summary of Contents for ELTEC EUROCOM 238

  • Page 1 ® EUROCOM Hardware Manual Revision 1A...
  • Page 2 ELTEC products are not authorized for use as components in life support devices or systems intended for surgical implant into the body or intended to support or sustain life.

  • Page 3: Table Of Contents

    User's Manual Table of Contents Table of Contents 1 Specification ..............1—1 1.1 Main Features..............1—2 1.2 Overview................. 1—3 1.2.1 Technical Details ............1—3 1.2.1.1 CPU ................1—3 1.2.1.2 Memory Configuration ..........1—3 1.2.1.3 Firmware..............1—4 1.2.1.4 Graphics Interface ............ 1—4 1.2.1.5 Floppy Disk...............
  • Page 4 Table of Contents User's Manual 1.2.1.15 Board Monitoring ............ 1—7 1.2.1.16 Transition Board ............. 1—7 1.2.2 Related Products ............1—8 2 Installation................ 2—1 2.1 Introduction..............2—1 2.2 Board Installation............2—2 2.2.1 Graphics ..............2—2 2.2.2 Keyboard ..............2—2 2.2.3 Mouse ................2—3 2.2.4 Parallel Port ..............
  • Page 5 User's Manual Table of Contents 2.6 Testing the Installation............ 2—7 3 Connector Assignments ..........3—1 3.1 CompactPCI ..............3—2 3.1.1 Board-to-Board Connector .......... 3—2 3.1.2 CompactPCI Connector..........3—3 3.2 Keyboard/Mouse ............3—6 3.3 USB1 ................3—7 3.4 Serial (COM1)..............3—8 3.5 Parallel (LPT1)..............
  • Page 6 Table of Contents User's Manual 3.9.3 IDE................3—23 3.9.4 SCSI ................3—24 3.9.5 Serial (COM2)............3—26 3.9.6 USB2 ................. 3—26 3.9.7 Parallel............... 3—27 4 Board Parameters............4—1 4.1 Host Bus ................. 4—1 4.2 CompactPCI ..............4—1 4.3 PCI Local Bus ..............4—2 4.4 Network ................
  • Page 7 5.1.9 ISA-Compatible and Power Management Registers.. 5—4 5.1.10 Local I/O Registers ............ 5—5 5.1.11 ISA-Compatible and Power Management Registers 5—6 5.1.12 ELTEC-Specific I/O Registers ........5—7 5.1.13 Watchdog ..............5—7 5.1.14 Interrupts ..............5—8 5.1.15 Accessing Hardware Addresses in a PC....5—10...
  • Page 8 Table of Contents User's Manual EUROCOM®238...
  • Page 9 User's Manual Table of Contents List of Tables Table 1—1: Supported CPUs ..........1—3 Table 1—2: Maximum Resolution and Refresh Rates ..1—4 Table 2—1: Jumper J0601 ........... 2—5 Table 2—2: Jumper J1001-J1003 ........2—5 Table 2—3: Jumper J1401 ........... 2—5 Table 2—4: Jumper J2201, J2202 ........
  • Page 10 Table of Contents User's Manual Table 3—12: Pinout PMC Connector (X301, X303, X305)........3—15 Table 3—13: Pinout PMC Connector (X302, X304, X306)........3—16 Table 3—14: Pinout PMC Connector (X401, X402, X403)........3—17 Table 3—15: Pinout CompactPCI Connector P3 (X0404)............3—18 Table 3—16: Pinout CompactPCI Connector P4 (X0405)............
  • Page 11 Table 4—4: Operating Temperature ........4—7 Table 5—1: Memory Address Map........5—1 Table 5—2: ISA-Compatible and Power Management Registers ......5—4 Table 5—3: Local I/O Registers ........... 5—5 Table 5—5: ISA-Compatible and Power Management Registers ......5—6 Table 5—6: ELTEC-Specific I/O Registers ......5—7 EUROCOM®238...
  • Page 12 Table of Contents User's Manual List of Figures Figure 1—1: Block Diagram ..........1—1 Figure 2—1: Location of Jumpers ........2—4 Figure 2—2: IPMI Programming........... 2—6 Figure 3—1: Location of Connectors........3—1 Figure 3—2: Location Keyboard/Mouse Port ....... 3—6 Figure 3—3: Location USB1..........3—7 Figure 3—4: Location COM1..........
  • Page 13 User's Manual Table of Contents Figure 3—16: Additional Input/Output ........ 3—21 Figure 3—17: Pinout COM2 ..........3—26 Figure 5—1: Watchdog Trigger Register......5—7 Figure 5—2: Interrupt Routing Scheme........ 5—9 EUROCOM®238...
  • Page 14 Table of Contents User's Manual EUROCOM®238...

  • Page 15: Specification

    User's Manual Specification 1 Specification 16-bit PCI/ISA Celeron Control ® Bridge Pentium Reset Memory Controller On-chip BIOS Keyboard Keyboard Cache Flash Mouse Controller Interfac EPROM SDRAM 128 MB Serial, SRAM Parallel, COM1 COM2, Interface USB2 SCSI 40 MB/s LPT1 Interface 1/2 2,5"...

  • Page 16: Main Features

    Specification User's Manual Main Features · Fully PC-compatible CompactPCI CPU board · Celeron CPU (566 MHz) or Pentium III (850 MHz), socket · 128/256 KB on-chip second level cache (depends on CPU) · 128 MB SDRAM · SCSI-2 (Ultra-wide) and IDE hard disk controller ·...

  • Page 17: Overview

    User's Manual Specification Overview 1.2.1 Technical Details ® The EUROCOM 238 is a Celeron or Pentium III -based single board computer with a CompactPCI interface. The standardized Eurocard format permits setting up multiprocessor systems in proven 19" racks. This is the ideal platform for industrial/telecom applications.

  • Page 18: Firmware

    Specification User's Manual 1.2.1.3 Firmware The BIOS is stored in a Boot-Block Flash-EPROM which enables easy BIOS updates. Boot from floppy, EIDE, SCSI, CD-ROM, LS- 120 is supported. A net boot EPROM can be added on request. 1.2.1.4 Graphics Interface ®...

  • Page 19: Ethernet Interface

    User's Manual Specification 1.2.1.7 Ethernet Interface The network interface uses the network controller Intel 82559 for 10/100 Mb connectivity with 10BaseT (twisted pair) or 100Base TX connectivity. 1.2.1.8 I/O Features Two asynchronous 16550 compatible serial channels with up to 115 kbaud transfer rate and 16-byte FIFO with RS232 levels are available;...

  • Page 20: Ce Conformity

    Specification User's Manual 1.2.1.10 CE Conformity All I/O-signals routed to the front panel are filtered by special EMC filters to meet EMC requirements (class B). 1.2.1.11 Watchdog ® The EUROCOM 238 has an on-board watch-dog for operator-less environments. 1.2.1.12 PMC A PCI extension card for PMC boards is provided.

  • Page 21: Operating Systems

    User's Manual Specification 1.2.1.14 Operating Systems ® The software support for the EUROCOM 238 includes Windows 98/NT/2000. Support for additional operating systems is in preparation. 1.2.1.15 Board Monitoring ® Client IPMI support for surveillance of EUROCOM 238 board parameters by an external IPMI controller is supplied. 1.2.1.16 Transition Board Due to the large number of I/O pins provided by the CompactPCI bus, many peripherals can be connected to a transition board: Digital...

  • Page 22: Related Products

    Specification User's Manual 1.2.2 Related Products Documentation PMC module carrier for EUROCOM® 238 (PMCC) Transition board for EUROCOM® 238 EUROCOM®238 1—8...

  • Page 23: Installation

    User's Manual Installation 2 Installation Introduction Do always observe precautions for handling electrostatic devices when unplugging boards from the rack or otherwise handling boards. Avoid touching integrated circuits except in an electrostatic free environment. Electrostatic discharge can damage circuits or shorten their lifetime.

  • Page 24: Board Installation

    BIOS (J1401). Check also the connection between the flatpanel connector on the VGA module and the flatpanel display. Please contact ELTEC for further information on supported panel displays and cabling information. 2.2.2 Keyboard A standard PS/2 keyboard can be connected to X0701.

  • Page 25: Mouse

    User's Manual Installation 2.2.3 Mouse A standard PS/2 mouse can be connected to X0701 using a split- adaptor. 2.2.4 Parallel Port A printer with Centronics interface can be connected directly to X0801. Other devices with ECC or ECP interface such as a CD- ROM can be connected here as well.

  • Page 26: Jumpers

    Installation User's Manual Jumpers This section contains a list of jumpers which can be set by the user. Pin 1 of the jumpers is drawn with a black dot. X2102 X2103 X2101-03 J2201 PCI2PCI X2101 Memory PMC-Slot Bridge J2202 North- 64 bit Bridge J1401...

  • Page 27: Cmos Battery

    User's Manual Installation 2.3.1 CMOS Battery Table 2—1: Jumper J0601 Jumper J0601 Function not allowed clear CMOS normal operation (default) 2.3.2 SCSI-Termination Table 2—2: Jumper J1001-J1003 Jumper Function J1001 J1002 J1003 Automatic Mode (default) Automatic LowByte Termination, Enable HighByte Termination Automatic LowByte Termination, Disable HighByte Termination Enable Termination...

  • Page 28: Ipmi Programming

    Installation User's Manual 2.3.4 IPMI Programming Table 2—4: Jumper J2201, J2202 Jumper Function J2201 programming with external programmer. connect external programmer as shown below. (default) ® 1-2, 3-4, 5-6 programming with EUROCOM programming with programming with ® EUROCOM external programmer J2201 J2201 J2202...

  • Page 29: Bios Setup

    BIOS Setup ® The EUROCOM 238 is delivered with an AWARD BIOS. The BIOS includes a setup menu to configure basic settings. ELTEC ® ships the EUROCOM 238 with optimized BIOS settings. If desired, most of the BIOS settings can be changed (some settings are hardwired).
  • Page 30 Installation User's Manual EUROCOM®238 2—8...

  • Page 31: Connector Assignments

    User's Manual Connector Assignments 3 Connector Assignments X1301 X2104 X1302 X1201 X1202 X2102 X2103 X2101-03 PCI2PCI X2101 Memory PMC-Slot Bridge North- 64 bit Bridge South- Bridge X1101 SCSI Board-to- Board SuperIO X0501 E238-1 X0701 X0802 X0801 X0901 X1401 X0601 Keyboard/ USB1 COM1 LPT1...

  • Page 32: Compactpci

    Connector Assignments User's Manual CompactPCI ® There are two PCI connectors on the EUROCOM 238. One is connecting the board to the CompactPCI-Rack, isolated by a PCI-to- PCI-Bridge. The other one is used to connect the PMC-Carrier- ® Board to the EUROCOM 238.

  • Page 33: Compactpci Connector

    User's Manual Connector Assignments 3.1.2 CompactPCI Connector The CompactPCI connectors P1, P2, P3, P4 and P5 providing the connection to the CompactPCI backplane. The connectors P1 and P2 (X1201, X1202) are following the PICMG-Specification 2.0 R3.0. Connector P3, P4 and P5 follow the tables below. Table 3—2: Pinout CompactPCI Connector P3 (X1302) Reihe A Reihe B...

  • Page 34: Table 3-3: Pinout Compactpci Connector P4 (X2104)

    Connector Assignments User's Manual Table 3—3: Pinout CompactPCI Connector P4 (X2104) reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved reserved...

  • Page 35: Table 3-4:Pinout Compactpci Connector P5 (X1301)

    User's Manual Connector Assignments Table 3—4:Pinout CompactPCI Connector P5 (X1301) Reihe A Reihe B Reihe C Reihe D Reihe E /SCSI_DP0 /SCSI_D11 /SCSI_IO FD_DRDEN FD_DRDEN /SCSI_D7 /SCSI_D10 /SCSI_REQ /FD_INDEX /FD_MTR0 /SCSI_D6 /SCSI_D9 /SCSI_C/D /FD_DS0 /FD_DIR /SCSI_D5 /SCSI_D8 /SCSI_SEL /FD_STEP /FD_WDATA /SCSI_DP1 /SCSI_MSG /FD_WGATE /FD_TRK0...

  • Page 36: Keyboard/Mouse

    Connector Assignments User's Manual Keyboard/Mouse Figure 3—2: Location Keyboard/Mouse Port Table 3—5: Pinout Keyboard/Mouse Connector (X0701) Signal Function /KBDAT Keyboard data /MSDAT PS/2 mouse data Ground Supply voltage (max. 0.8 A) /KBCLK Keyboard clock /MSCLK PS/2 mouse clock EUROCOM®238 3—6...

  • Page 37: Usb1

    User's Manual Connector Assignments USB1 ® The EUROCOM 238 supports two USB ports. USB1 is located at the front panel. USB2 is routed to the backplane. Figure 3—3: Location USB1 Table 3—6: Pinout USB1 (X0601) Signal USB_P1- USB_P1+ EUROCOM®238 3—7...

  • Page 38: Serial (Com1)

    Connector Assignments User's Manual Serial (COM1) ® The EUROCOM 238 supports two serial ports COM1 is located at the front panel (9-pin D). COM2 is routed to the backplane. Figure 3—4: Location COM1 Figure 3—5: Pinout COM1 Table 3—7: Pinout COM1 Signal DCD1 RXD1...

  • Page 39: Parallel (Lpt1)

    User's Manual Connector Assignments Parallel (LPT1) The bidirectional parallel port LPT1 supports IEEE 1284 (ECP, EPP). Figure 3—6: Location LPT1 Figure 3—7: Pinout LPT1 (X0801) Table 3—8: Pinout LPT1 (X0801) Signal Direction Function /STROBE in/out Strobe in/out Data bit 0 in/out Data bit 1 in/out...

  • Page 40: Ethernet

    Connector Assignments User's Manual Ethernet Figure 3—8: Location Ethernet Port 1 2 3 4 5 6 7 8 Figure 3—9: Pinout Ethernet Port Table 3—9: Pinout Ethernet Port (X0901) Signal Function Transmit data positive Transmit data negative Receive data positive not connected not connected Receive data negative...

  • Page 41: Vga

    User's Manual Connector Assignments Figure 3—10: Location VGA Figure 3—11: Pinout VGA Table 3—10: Pinout VGA (X1401) Name Function PRRED Red channel PRGREEN Green channel PRBLUE Blue channel not connected Ground Ground Ground Ground not connected Ground not connected PRDDCDAT Monitor data PRHSYNC Digital HSync...

  • Page 42: Pmc-Carrier (Pmcc)

    Connector Assignments User's Manual PMC-Car ier (PMCC) X0405 X0404 0201 X0202 X0302 X0401 X0304 X0402 X0306 X0403 X0301 PMC-Slot 1 X0303 PMC-Slot 2 X0305 PMC-Slot 3 PCI2PCI Bridge PCI2PCI Bridge 64 bit 32 bit X0101 Board-to- Board E238-2 Figure 3—12: PMC-Carrier The PMC-Carrier board can be used to connect three PMC boards to ®...

  • Page 43: Figure 3-13: Compactpci With One Segment

    4 slot 3 slot 2 slot 1 slot slot slot 1 slot 2 slot 3 slot 4 slot 5 slot 6 slot 7 Eurocom 238 with PMCC Segment 1 Segment 2 Figure 3—14: CompactPCI with two Segments EUROCOM®238 3—13...

  • Page 44: Table 3-11: Pinout Board-To-Board Connector (X0101)

    Connector Assignments User's Manual Table 3—11: Pinout Board-to-Board Connector (X0101) AD11 AD12 AD13 AD14 AD10 AD17 AD18 AD19 AD15 AD16 AD23 AD24 AD20 AD21 AD22 AD29 AD25 AD26 AD27 AD28 AD31 AD32 AD33 AD34 AD30 AD37 AD38 AD39 AD35 AD36 AD43 AD44 AD40...

  • Page 45: Pmc Slots

    User's Manual Connector Assignments 3.8.1 PMC Slots Table 3—12: Pinout PMC Connector (X301, X303, X305) Name Name -12 V /IRQA /IRQB /IRQC /IRQD PCICLK /PGNT /PREQ AD31 AD28 AD27 AD25 /C_BE3 AD22 AD21 AD19 AD17 /FRAME /IRDY /DEVSEL /PLOCK SDONE /SBO AD15 AD12...
  • Page 46 Connector Assignments User's Manual Table 3—13: Pinout PMC Connector (X302, X304, X306) Name Name 12 V /TRST 3.3 V /PCIRST 3.3 V AD30 AD29 AD26 AD24 3.3 V IDSEL AD23 3.3 V AD20 AD18 AD16 /C_BE2 /TRDY 3.3 V /STOP /PERR 3.3 V /SERR...
  • Page 47 User's Manual Connector Assignments Table 3—14: Pinout PMC Connector (X401, X402, X403) Name Name IO01 IO02 IO03 IO04 IO05 IO06 IO07 IO08 IO09 IO00 IO11 IO12 IO13 IO14 IO15 IO16 IO17 IO18 IO19 IO10 IO21 IO22 IO23 IO24 IO25 IO26 IO27 IO28 IO29...

  • Page 48: Compactpci

    Connector Assignments User's Manual 3.8.2 CompactPCI The CompactPCI connectors P1, P2, P3 and P4 providing the connection to the CompactPCI backplane. The connectors P1 and P2 are following the PICMG-Specification 2.0 R3.0. Connector P3 and P4 follow the tables below. Table 3—15: Pinout CompactPCI Connector P3 (X0404) V_IO PMC3_IO64...
  • Page 49 User's Manual Connector Assignments Table 3—16: Pinout CompactPCI Connector P4 (X0405) PMC2_IO40 PMC2_IO39 PMC2_IO38 PMC2_IO37 PMC2_IO36 PMC2_IO35 PMC2_IO34 PMC2_IO33 PMC2_IO32 PMC2_IO31 PMC2_IO30 PMC2_IO29 PMC2_IO28 PMC2_IO27 PMC2_IO26 PMC2_IO25 PMC2_IO24 PMC2_IO23 PMC2_IO22 PMC2_IO21 PMC2_IO20 PMC2_IO19 PMC2_IO18 PMC2_IO17 PMC2_IO16 PMC2_IO15 PMC2_IO14 PMC2_IO13 PMC2_IO12 PMC2_IO11 PMC2_IO10 PMC2_IO9...

  • Page 50: Transition Board

    Connector Assignments User's Manual Transition Board An IBM compatible floppy disk drive, an IDE harddisk, a SCSI harddisk (8 Bit, 16 Bit), USB2, COM2, Flatpanel and additional ® inputs/outputs may be connected to EUROCOM 238 via a small transition board. This board has to be connected to the CompactPCI backplane.

  • Page 51: Misc

    User's Manual Connector Assignments 3.9.1 Misc This connector can be used to connect additional Inputs and Outputs. Keyboard Mouse Speaker Figure 3—16: Additional Input/Output Table 3—17: Pinout Additional Input/Output (X303) Name Function Function Name Power Data from/to Keyboard /KBDAT /MSDAT Data from Mouse Clock for Keyboard /KBCLK...

  • Page 52: Floppy

    Connector Assignments User's Manual 3.9.2 Floppy The floppy cable is connected between floppy drive and the adapter connector. The power supply cable for the floppy drive must be connected directly to the power supply. Table 3—18: Pinout Floppy Connector (X301) Name Name DRVDEN0...

  • Page 53: Ide

    User's Manual Connector Assignments 3.9.3 IDE Like the floppy disk drive an EIDE drive is connected with its flat cable to the adapter. The power supply cable of the EIDE device must be directly connected to the power supply. Up to two EIDE drives (harddisk, CD-ROM) can be connected. Cable length should not exceed 40 cm to avoid instable operation.

  • Page 54: Scsi

    Connector Assignments User's Manual 3.9.4 SCSI SCSI is only available on board versions with SCSI option. The SCSI cable is plugged into the appropriate connector on the P2- Adapter. All SCSI devices must be cabled in a bus-like fashion, i.e. the cable goes from one device to the next one.
  • Page 55 User's Manual Connector Assignments Table 3—21: Pinout SCSI Connector 16 bit (X402, X403) Name Name TERMPWR TERMPWR TERMPWR TERMPWR /ATN /BSY /ACK /RST /MSG /SEL /C_D /REQ /I_O EUROCOM®238 3—25...

  • Page 56: Serial (Com2)

    Connector Assignments User's Manual 3.9.5 Serial (COM2) ® The EUROCOM 238 supports two serial ports. COM1 is located at the front panel (9-pin D). COM2 is routed via the transition board. Figure 3—17: Pinout COM2 Table 3—22: Pinout COM2 (X202) Signal DCD2 RXD2...

  • Page 57: Parallel

    User's Manual Connector Assignments 3.9.7 Parallel ® The EUROCOM 238 supports one Parallelport which is routed to the frontpanel for the 8TE-Board and to the transisionboard for the 4TE-Board. Table 3—24: Pinout Parallel (X201) Signal Direction Function /STROBE in/out Strobe in/out Data bit 0 in/out...
  • Page 58 Connector Assignments User's Manual EUROCOM®238 3—28...

  • Page 59: Board Parameters

    User's Manual Board Parameters 4 Board Parameters Host Bus 66 MHz (with Celeron) 100 MHz (With Pentium III) CompactPCI CompactPCI interface according to specification PICMG 2.0 (Rev. 3.0) from October 1, 1999. 64 bit Intel 21154 Bridge supports up to 8 slots 32-bit I/O address range 32-bit memory-mapped I/O address range 64-bit prefetchable memory address range...

  • Page 60: Pci Local Bus

    Board Parameters User's Manual PCI Local Bus CPU to PCI Transfer Options: Write post buffer Max. 120 MB/s (peak) PCI to Memory Transfer Options: Max. 120 MB/s (peak) Clock Speed: 33 MHz IRQs Four PCI interrupts rerouted to selectable ISA interrupts Network 10BaseT/100BaseTx (twisted-pair) Transfer Speed:...

  • Page 61: Scsi

    User's Manual Board Parameters SCSI Ultra wide SCSI (8/16 bit) Transfer Speed: asynchronous transfer 5 MB/s synchronous transfer 20 MB/s (8-bit) synchronous transfer 40 MB/s (16-bit). Serial I/O 2 Channels: Full duplex, asynchronous 50 b/s - 115,2 KB/s RS232 level Two port: 1.5 / 12 Mb/s Supply current for external devices: 500 mA.

  • Page 62: Keyboard

    Board Parameters User's Manual Keyboard: MF2/AT mode PS/2 mode Mouse PS/2 mode Serial mouse at channel 1 or channel 2 4.10 Parallel I/O Centronics bidirectional, unbuffered TTL Transfer Rate: max. 2 MB/s EUROCOM®238 4—4...

  • Page 63: Video I/O

    User's Manual Board Parameters 4.11 Video I/O Dotclock: max. 170 MHz CLUT: 4/8/16/24 bit/pixel 16, 256, 32 K, 64 K, 16 M colors depending on screen resolution Video Resolution: 320 x 200 - 1280 x 1024 Horizontal Frequencies: max. 84 kHz Vertical Frequencies: max 100 Hz Table 4—1: Resolution Table for CRT only Mode Resolution...
  • Page 64 Board Parameters User's Manual Table 4—2: Resolution Table for Single Display Dual Timing Mode* Resolution Colordepth CRT Refresh Panel Refresh [pixel x pixel] [bit / pixel] [Hz] [Hz] 1024 x 768 800 x 600 800 x 600 800 x 600 640 x 480 640 x 480 640 x 480...

  • Page 65: Mtbf Values

    User's Manual Board Parameters 4.12 MTBF Values 8356 h (computed after MTL HDBK-217E) 111970 h (realistic value from industry standard experience) ESD Values: 2 kV (Human body method) 4.13 Environmental Conditions Table 4—4: Operating Temperature CPU Frequency CPU Power Air Flow Case (MHz) Dissipation...

  • Page 66: Eurocom®238

    Board Parameters User's Manual 4.14 Maximum Operating Humidity: 85% relative (higher value on request) 4.15 Power Requi ements Total Power Requirements (without PCI extensions) 7.5 A max. 5.0 A typ. +5 VDC +/-5% (566 MHz) 100 mA max. 30 mA typ. +12 VDC +/-10% 100 mA max.

  • Page 67: Programmers Reference

    User's Manual Programmers Reference 5 Programmers Reference Memory Address Map Table 5—1: Memory Address Map Address Range Device Comment $0000.0000 -$0009.FFFF 640 KB Local DRAM 640 KB lower DRAM $000A.0000 -$000B.FFFF 128 KB VGA Video Used for standard Memory VGA modes $000C.0000 -$000C.7FFF 32 KB Video BIOS Video BIOS...

  • Page 68: 128 Kb Vga Video Memory

    Programmers Reference User's Manual 5.1.2 128 KB VGA Video Memory The VGA graphics memory occupies segment A and B of the first 1 MB address range. The CPU accesses the video memory in standard videos modes (VGA, CGA). 5.1.3 32 KB Video BIOS EPROM The lower part of the C segment is reserved for the video BIOS.

  • Page 69: I/O Address Map

    If I/O related functions are necessary for an application, please try to use either BIOS or driver functionality. Only the ELTEC specific I/O addresses which are used the watchdog can be used directly by the user. System designers should note that add-on cards should avoid to use one of the specified I/O addresses for other purposes.

  • Page 70: Isa-Compatible And Power Management Registers

    Programmers Reference User's Manual 5.1.9 ISA-Compatible and Power Management Registers The PCI/ISA bridge contains the ISA-compatible registers which are used for ISA DMA, interrupt and timer functions. Additionally, the bridge contains circuitry for power management. Two registers for generation of PCI configuration cycles are placed within the chipset. All these registers are mainly used by BIOS and device drivers.

  • Page 71: Local I/O Registers

    User's Manual Programmers Reference 5.1.10 Local I/O Registers This list contains a summary of PC related registers which are used for standard I/O purposes like serial, parallel I/O, EIDE, floppy disk, graphics controller and keyboard controller. Typically these registers are accessed via BIOS and device drivers. Please refer to additional PC literature for more information.

  • Page 72: Isa-Compatible And Power Management Registers

    Programmers Reference User's Manual 5.1.11 ISA-Compatible and Power Management Registers The PCI/ISA bridge contains the ISA-compatible registers which are used for ISA DMA, interrupt and timer functions. Additionally, the bridge contains circuitry for power management. Two registers for generation of PCI configuration cycles are placed within the chipset. All these registers are mainly used by BIOS and device drivers.

  • Page 73: Eltec-Specific I/O Registers

    5.1.12 ELTEC-Specific I/O Registers ® The EUROCOM 238 contains register, which is used to start and trigger the watchdog. Table 5—5: ELTEC-Specific I/O Registers I/O Address Device $07C0-$07DF Watchdog trigger register 5.1.13 Watchdog The watchdog circuitry is disabled after system reset/power-up. The first write cycle to the watchdog trigger register enables the watchdog.

  • Page 74: Interrupts

    Programmers Reference User's Manual 5.1.14 Interrupts ® The EUROCOM 238 uses the PC interrupts for different purposes. First there are the PC compatible interrupt sources like serial, parallel I/O, timer, keyboard, floppy disk, EIDE, real-time clock, PS/2 mouse and coprocessor. These interrupt sources require dedicated interrupt numbers, which are fixed.

  • Page 75: Eurocom®238

    User's Manual Programmers Reference ISA-Bridge CompactPCI Backplane IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 IRQ8 IRQ9 IRQ10 configured IRQ11 IRQ12 Mainboard IRQ13 BIOS IRQ14 IRQ15 INT A INT B INT C INT D SCSI Board Board Board Board Board Board Board Board...

  • Page 76: Accessing Hardware Addresses In A Pc

    238 contain drivers for different operating systems. If you don't find the appropriate driver for your operating system on the disks, please contact ELTEC for further information and availability of drivers. Drivers are distributed or planned for Windows 98, Windows NT4.0 and Windows 2000.

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