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- Table of Contents=
- { Table of Contents
-
- Introduction
- {Using Help}
- {About AMI ECU}
-
- Menus and Submenus
- {Main Menu}
- {Step 2}
- {Step 3}
- {Step 5}
- {Step 6}
-
- Supplemental Information
- {Advanced Options}
- {Utilities}
- {CFG Files}
- {CMS File}
- {INF File}
- {EISA Slot Numbers}
- {EISA CMOS RAM}
- }
-
- Using Help=
- { Using Help
-
- The help window may be accessed at any time by
- pressing the F1 key. While in the help system
- you may scroll the window up and down using the
- up and down cursor keys.
-
- The help window includes a menu with three
- buttons at the bottom of the window:
-
- Back Press F2 to redisplay the last help
- topic that was shown.
-
- Contents Press F3 to display the table of
- contents for the help system.
-
- Quit Press ESC to exit from the help system
- and return to the ECU.
-
- }
-
- About AMI ECU=
- { About EISA Configuration and AMI ECU
-
- The EISA Configuration Utility from American
- Megatrends, Inc. configures EISA (Extended
- Industry Standard Architecture) computer systems.
-
- EISA systems and adapter cards are much more
- complex and flexible than the older ISA designs.
- The EISA Configuration Utility was created to
- automate the configuration process in EISA
- systems.
-
- The ECU permits the user to configure an EISA
- computer. The ECU takes into account the needs
- of all adapter cards in the system. The ECU
- configures the EISA devices and sets and
- maintains system parameters, storing them in EISA
- CMOS RAM. The ECU guarantees that there will be
- no conflicts or contention issues between adapter
- cards, since it assigns all necessary system
- resources.
-
- The ECU must be executed every time ISA or EISA
- adapter cards are physically added, removed, or
- moved. The ECU operates on the information
- provided by the CFG (configuration) files that
- accompany the EISA motherboard and EISA or ISA
- adapter cards.
-
- When an EISA system is powered on, the system
- BIOS reads the EISA configuration information
- from EISA CMOS RAM and initializes all adapter
- cards in the system.
-
- Important Terms
-
- .CFG The DOS file extension for a standard EISA
- configuration file (CFG File) that provides
- configuration information for a specific
- EISA Adapter Card.
- ECU EISA Configuration Utility
- EISA Extended Industry Standard Architecture
- ISA Industry Standard Architecture
- .OVL The standard DOS file extension for an
- EISA CFG file extension (Overlay file).
-
- EISA is an acronym for Extended Industry Standard
- Architecture. EISA is basically a superset of
- the Industry Standard Architecture (ISA). ISA is
- based on the original IBM PC/AT specifications.
- The EISA specifications allow 32-bit memory
- addressing to be used by the CPU, DMA devices,
- and bus mastering devices. The above devices can
- also use either 16-bit or 32-bit data
- transferring.
-
- In EISA systems, configuration is done through
- software - the ECU, rather than the hardware
- switches used by an ISA system. I/O ports, ROM
- addresses, memory use, and the IRQ and DMA lines
- for an EISA motherboard and adapter cards are
- configured using an ECU, where an ISA adapter
- card uses DIP switches and jumpers to perform the
- same function.
-
- The EISA bus is much faster than the ISA Bus.
- Not only does EISA provide a wider 32-bit bus, it
- also provides a maximum 33 MB/sec bus transfer
- rate. An ISA bus can transfer data at only 8
- MB/sec. EISA achieves this higher throughput
- using high-speed burst mode transfers, which take
- only one clock cycle. Normal (ISA compatible)
- transfers take two clock cycles.
-
- EISA computers have 32-bit expansion slots that
- are fully compatible with 8-bit and 16-bit
- PC/XT/AT expansion slots. EISA expansion slots
- have 188 pins. The upper 98 pins are exactly the
- same as the standard AT pinouts. The lower 90
- pins are used for EISA bus signals.
-
- Perhaps the most practical benefit of EISA
- systems is automatic configuration of system
- resources and adapter cards. That means much
- less dependence on DIP switches, jumpers, and
- installing configuration files. Switch and
- jumper-based configurations are still allowed for
- EISA systems to maintain ISA compatibility.
-
- See also: {CFG Files} {EISA CMOS RAM}
- {CMS File} {EISA Slot Numbers}
- {INF File} {Main Menu}
- {Using Help}
- }
-
- Main Menu=
- { Main Menu
-
- This is the main menu of the AMI EISA
- Configuration Utility. For general information
- on this utility see {About AMI ECU}.
-
- The main menu outlines the six steps involved in
- configuring an EISA system. Steps 1, 2, and 3
- are optional. To select a step, use the up and
- down cursor keys to move to a step and then press
- ENTER. You may also select a step by pressing
- its number.
-
- Step 1: About EISA Configuration
- This step displays information for users
- who are new to EISA and EISA
- configuration.
-
- {Step 2}: Add and Remove Boards
- This step is optional. Use this step to
- manually add or delete boards. Most
- boards are automatically detected and
- added by the ECU.
-
- {Step 3}: Change Configuration Settings
- This step is optional. Use this step to
- change configuration settings for any
- board in the system. If you skip this
- step, all settings will remain set to
- their default state.
-
- Step 4: Save Configuration
- This step saves the configuration
- settings to {EISA CMOS RAM} and into a
- backup file (the {CMS File}).
-
- {Step 5}: View Switch/Jumper Settings
- This step displays how to set DIP
- switches and jumpers on any board that is
- switch or jumper configurable.
-
- {Step 6}: Exit
- This step exits to the operating system.
- If any configuration settings were
- changed, you are given the option of
- rebooting the system so that the new
- settings will take effect.
-
- You may access the {Utilities} menu by pressing
- F9 from the main menu.
- }
-
- Step 2=
- { Step 2: Add and Remove Boards
-
- This step is optional. Use this step to manually
- add or delete boards. Most EISA boards are
- automatically detected and added by the ECU.
- Also use this step to move a board from one slot
- to another.
-
- If the ECU did not detect your EISA boards
- properly, you may add a board manually by
- pressing INSERT and choosing the board's CFG
- file.
-
- You may delete a board by moving to that board
- and pressing DEL.
-
- You may move a board from one slot to another by
- moving to that board and pressing F7.
-
- Most ISA boards cannot be automatically detected
- by the ECU, but most of these boards do not need
- to be configured anyway. In some rare cases it
- may be necessary to define an ISA board so it's
- resources will not be used by an EISA board. For
- more information on this subject see
- {Define ISA Board}.
-
- }
-
- Step 3=
- { Step 3: Change Configuration Settings
-
- This step is optional, to skip it, press ESC to
- return to the main menu. Use this step to change
- configuration settings on any board that is
- installed. To view or change a board's settings,
- use the cursor keys to move to the board and then
- press ENTER.
-
- When you are satisfied with the current settings
- press ESC to return to the main menu.
-
- Pressing F9 will display the {Advanced Options}
- menu.
- }
-
- Step 5=
- { Step 5: View Switch/Jumper Settings
-
- Use this step to verify that all DIP switches and
- jumpers on the installed boards are set
- correctly. Many ISA boards and some EISA boards
- have switches and jumpers that have to be set
- manually.
-
- The following screens also display any software
- statements. Software statements are generated by
- boards that require special drivers or other
- software to be loaded.
-
- The screens also display other information about
- the configuration that may be useful. All of
- this information can be printed or saved on disk
- by pressing F7.
- }
-
- Step 6=
- { Step 6: Exit
-
- Press ENTER to end the AMI EISA Configuration
- Utility and return to DOS. Pressing ESC will
- return to the main menu.
-
- If the contents of this system's {EISA CMOS RAM}
- has been changed during this configuration
- session, the changes will not take effect until
- the system is rebooted. If this is the case, you
- have the option of rebooting now by pressing F10.
- }
-
- Copy CFG File=
- {
- Copy CFG File
-
- Before your computer can be configured, the ECU
- needs a CFG file for each EISA board in the
- system (including the system board). {CFG Files}
- are included on a diskette that comes with each
- EISA product. CFG files have filenames that
- start with an exclamation point (!) and have an
- extension of ".CFG".
-
- Place the diskette containing the CFG file into
- drive A. If the file can be found in a different
- drive or directory, enter a new path to the
- file.
-
- Pressing ENTER will copy the file into the
- current directory so it can be used by the ECU.
-
- Pressing ESC will skip this CFG file and leave
- the corresponding board unconfigured.
- }
-
- Slot Selection=
- { Slot Selection
-
- You must select a slot for the card that is being
- configured. There may be several choices
- available, they are listed in the order of
- preference.
-
- See Also: {EISA Slot Numbers}
- }
-
- Edit Board=
- { Edit Board Settings
-
- This menu contains a list of all functions for
- one board. Each function has a "choice" setting
- and may have one or more resource settings.
-
- To change a function's choice setting, use the up
- and down cursor keys to highlight a function and
- then press ENTER. Some functions may only have
- one choice setting and therefore cannot be
- changed.
-
- To change a function's resource settings, use the
- up and down cursor keys to highlight a function
- and then press F6. Not all functions have
- resource settings.
-
- When you are satisfied with the current settings
- press ESC to return to the previous menu.
- }
-
- Edit Function=
- { Function Choice Selection
-
- This menu shows the choice settings available for
- a function. The current setting is indicated by
- a mark beside that setting. You may change the
- current setting by selecting a different choice.
- If a setting causes a conflict with other
- functions or boards, you will not be allowed
- select that choice. Press ENTER to change the
- function's choice setting and return to the
- previous screen, or press ESC to ignore any
- changes that you have just made.
-
- See {Function Help} for help on the settings
- available for this function.
- }
-
- Edit Resource=
- { Resource Editing
-
- This screen is used to edit a function's resource
- settings If you create any conflicts while
- changing resources, you will be warned and the
- setting that caused the conflict will not be
- allowed. Press ENTER to return to the previous
- screen.
-
- See {Function Help} for help on the settings
- available for this function.
- }
-
- Print Config=
- { Confirm Print
-
- This screen is used to print the configuration
- information or to save it in a file.
-
- To print the information, select "Printer" and
- then press ENTER.
-
- To save the information in a file, select "File",
- then press TAB and enter a filename, then press
- ENTER.
-
- Pressing ESC will return to the previous screen
- without printing.
- }
-
- Advanced Options=
- { Advanced Options Menu
-
- This is a menu of options for use by an advanced
- user. There are four choices available. Press
- ESC to return to the previous screen.
-
- Global {Resource Map}
- This option displays a list of allocated
- resources (DMA, IRQ, Ports, and Memory).
-
- {Board Details}
- Use this option to display details on
- individual boards.
-
- {System Details}
- This option displays information on the
- entire system and its present state of
- configuration.
-
- Physical Board {ID Map}
- Displays the ID's of boards that are
- physically present in the system.
- }
-
- Resource Map=
- { Global Resource Map
-
- This screen shows which system resources are
- currently used in this configuration. System
- resources include DMA channels, IRQ levels, I/O
- Ports, and Memory/Address ranges.
- }
-
- Board Details=
- { Board Details
-
- This screen shows the details on one board in the
- system. Use the up and down arrow keys to scroll
- the screen. Use PGUP and PGDN to see details on
- other boards. Press ENTER to return to the
- previous menu.
- }
-
- System Details=
- { System Details
-
- This screen shows details about the system being
- configured. Use the up and down arrow keys to
- scroll the screen. Press ENTER to return to the
- previous menu.
- }
-
- ID Map=
- { Physical Board ID Map
-
- This chart shows which boards have been
- physically plugged into your system or devices
- that are embedded in you system. Only boards
- with readable IDs are shown. This means that
- most ISA boards will not be displayed on this
- screen.
- }
-
- Select CMS=
- { Selecting a CMS File
-
- You are running the ECU in remote mode. You may
- select a {CMS File} to modify. CMS files each
- contain a saved configuration for a system. If
- you wish to start a new remote configuration,
- press ESC and you will be asked to select CFG
- files one by one.
-
- For more information on how to select a file from
- this menu see: {File Selection}
- }
-
- Select System CFG=
- { Selecting System Board CFG File
-
- When adding boards one by one, you must first
- select the system board CFG file.
-
- For more information on how to select a file from
- this menu see: {File Selection}
-
- See Also: {CFG Files}
- }
-
- Select CFG=
- { Selecting a Board to Add
-
- Select the CFG File for the board that you want
- to add.
-
- For more information on how to select a file from
- this menu see: {File Selection}
-
- See Also: {CFG Files}
-
- If you do not have a CFG file for an ISA board,
- you may add a user-defined ISA board by selecting
- "Add ISA". You must define ISA boards before you
- begin configuration. To do this, select the
- {Define ISA Board} command from the {Utilities}
- menu.
- }
-
- Write CMOS Select=
- { Selecting CMS File to Write to EISA CMOS
-
- More than one {CMS File} has been found in the
- current directory, you must choose which one to
- write to {EISA CMOS RAM}.
-
- For more information on how to select a file from
- this menu see: {File Selection}
- }
-
- Select INF=
- { Selecting the INF file to Display
-
- You are in remote mode so you must select an
- {INF File} to display. The INF file contains
- information about a saved configuration. The
- names of the INF files correspond to the names of
- the system board {CFG Files} that were used in
- the configurations.
-
- For more information on how to select a file from
- this menu see: {File Selection}
- }
-
- File Selection=
- { File Selection
-
- Use the up and down cursor keys to move the
- highlight bar over a file and press ENTER.
-
- Only files matching the filespec shown at the top
- of the screen are shown in the window. You may
- change the filespec to select files from other
- drives/directories by pressing SHIFT TAB.
- }
-
- Utilities=
- { Utilities Menu
-
- This screen controls how a configuration is
- produced. Several options are available, each
- one can be enabled or disabled by pressing SPACE
- when an option is highlighted.
-
- Remote Mode
- Turn off remote mode if the configuration
- that you are working on is for this computer.
- If you want to produce a configuration for a
- computer other than this one, turn on remote
- mode. If remote mode is off, configuration
- information will be stored in this computer's
- {EISA CMOS RAM} as well as a {CMS File} and
- {INF File}. If remote mode is on, the
- configuration will be stored in the files
- only. These files can be copied to another
- computer and the configuration can be copied
- into that system's EISA CMOS RAM using the
- "Restore configuration from backup" option on
- this screen.
-
- Advanced/Dealer Mode
- Some EISA boards have CFG files that contain
- options that are not ordinarily configured by
- end users. If this mode is turned on, any
- functions that are marked as EXP (expert)
- will be visible and can be changed.
-
- Force new configuration
- When turned on, this mode will ignore any
- existing configuration settings in CMOS or in
- the {CMS File}. All settings will be set to
- their defaults.
-
- Load CFG files manually from directory list
- When this mode is turned on, the ECU will
- not automatically detect and add boards to
- the configuration. You will be prompted to
- select boards one by one.
-
- Load CFG files listed in CFGLIST.DAT
- If you prefer to specify a list of CFG files
- to load, you may create a file called
- CFGLIST.DAT that contains the filenames of
- the CFG files to be added. Turning this
- option on causes the ECU to use this file.
-
- Ignore ID mismatches
- Normally the ECU will only configure boards
- that are physically present in the system.
- If a board was present in a previous
- configuration but was then physically
- removed, the ECU will normally not load the
- CFG file for this board. Turning this
- option on causes the ECU to load CFG files
- for all boards that were in the previous
- configuration regardless of whether or not
- they are physically installed.
-
- Press F5 to restore a configuration from a CMS
- file. See {Write EISA CMOS} for more information
- on this option.
-
- Press F6 to display the physical board {ID Map}.
-
- Press F7 to {Define ISA Board}.
- }
-
- Write EISA CMOS=
- { Write EISA CMOS from CMS File
-
- This option will copy the contents of a
- {CMS File} into this system's {EISA CMOS RAM}
- which is maintained when the system is turned
- off. Doing this will erase any previous
- configuration information stored in EISA CMOS
- RAM. If there is more than one CMS File in
- the current directory, you will be asked which
- one to use.
- }
-
- Define ISA Board=
- { ISA Board Definition
-
- If you have an ISA board with no CFG file, you
- may use this screen to define the board. It is
- only necessary to define an ISA board when you
- want to prevent other boards in the system from
- using the same IRQ levels, DMA channels, I/O Port
- addresses, or Memory addresses that your ISA
- board uses. To define an ISA board, you must:
-
- 1. Enter a description of the board in the
- "Board Name" box.
- 2. Enter the board manufacturer's name in the
- next box.
- 3. Select a board type in the "Board Type" box.
- 4. Select a slot type in the "Slot Type" box.
- 5. Define up to 4 DMA channels needed by the
- board by selecting one of the DMA boxes.
- 6. Define up to 7 IRQ levels used by the board
- by selecting one of the IRQ boxes.
- 7. Define up to 8 ranges of I/O ports used by
- the board by selecting one of the Port
- boxes.
- 8. Define up to 8 memory/address ranges used by
- the board by selecting one of the Memory
- boxes.
- 9. Press F10 to save your ISA board definition
- for use in a later configuration session.
-
- The following additional options are available at
- any time:
-
- Load (Press F9)
- Loads an ISA board definition that was
- created before. The definition can be
- modified and then resaved.
-
- New (Press F2)
- Starts a new ISA board definition.
-
- Delete (Press F4)
- Removes an ISA board definition from the
- ECU's internal ISA board database.
-
- Quit (Press ESC)
- Returns to the main menu without saving any
- changes.
- }
-
- ISA DMA=
- { ISA DMA Definition
-
- Use this screen to define a DMA channel used by
- the ISA board. Select the DMA channel, transfer
- size, and timing, and then press ENTER to return
- to the main ISA definition screen.
-
- Press ESC to ingore any changes and return to the
- previous screen.
-
- Press F4 to remove the DMA channel from the ISA
- board's definition.
- }
-
- ISA IRQ=
- { ISA IRQ Definition
-
- Use this screen to define an IRQ level used by
- the ISA board. Select the IRQ level and trigger
- type, and then press ENTER to return to the main
- ISA definition screen.
-
- Press ESC to ingore any changes and return to the
- previous screen.
-
- Press F4 to remove the IRQ level from the ISA
- board's definition.
- }
-
- ISA Port=
- { ISA Port Definition
-
- Use this screen to define a range of I/O ports
- used by the ISA board. Enter the starting and
- ending ports, select the size, and then press
- ENTER to return to the main ISA definition
- screen.
-
- Press ESC to ingore any changes and return to the
- previous screen.
-
- Press F4 to remove the Port range from the ISA
- board's definition.
- }
-
- ISA Memory=
- { ISA Memory Definition
-
- Use this screen to define a memory address range
- used by the ISA board. Enter the size of the
- block of memory in kilobytes (1k = 1024), and
- enter the start address of the block in hex
- (Note: Use an absolute address, instead of
- C000:0000 use 000C0000). Also select RAM or ROM,
- Cachable or Noncachable, the memory type, width,
- and decode width. If you are not sure about any
- of these options, just use the default (which is
- always at the top of each box). When you are
- finished, press ENTER to return to the main ISA
- definition screen.
-
- Press ESC to ingore any changes and return to the
- previous screen.
-
- Press F4 to remove the Memory range from the ISA
- board's definition.
- }
-
- ISA Board Delete=
- { Delete ISA Board Definition
-
- Choose an ISA board definition to delete. Use
- this option to remove an existing ISA board
- definition from the ECU's internal ISA board
- database.
-
- Press ESC to abort and return to the previous
- screen.
- }
-
- ISA Board Load=
- { Load ISA Board Definition
-
- Choose an ISA board definition to load. Use this
- option to modify an existing ISA board
- definition.
-
- Press ESC to abort and return to the previous
- screen.
- }
-
- Add ISA Board=
- { Add ISA Board
-
- Select an ISA board to add to the current
- configuration. You must define ISA boards using
- the utilities menu (F9 from the main menu).
-
- Press ESC to abort and return to the previous
- screen.
- }
-
- Confirm Remove=
- {
- Press ENTER to remove the board from the
- configuration.
-
- Press ESC to keep the board in the current
- configuration.
- }
-
- Confirm Restart=
- {
- Once you have saved the configuration, you cannot
- add or remove boards or make changes to the
- settings without restarting the ECU.
-
- Press ENTER to restart the ECU.
-
- Press ESC to return to the main menu without
- restarting.
- }
-
- Amperage Warning=
- {
- The ECU keeps track of how much current is drawn
- by each board that is configured. The total
- amount of current needed by all boards in your
- system currently exceeds the capacity of your
- system board. If the system is powered on with
- all of these boards installed, physical damage
- may occur.
- }
-
- Swap File=
- {
- The amount of free memory in this system is low.
- The ECU must page some data to the disk to free
- up more memory. This data may be needed at any
- time so do not remove the diskette from the
- drive.
- }
-
- SUBCHOICE conflict=
- { SUBCHOICE conflict
-
- The SUBCHOICE that you selected contained
- request(s) for resource(s) already allocated to
- some other function. Selecting this subchoice
- will result in an irresolvable conflict. So this
- subchoice has been ignored, and the previous
- subchoice has been restored.
- }
-
- CHOICE conflict=
- { CHOICE conflict
-
- The CHOICE that you selected contained request(s)
- for resource(s) already allocated to some other
- function. Selecting this choice will result in
- an irresolvable conflict. So this choice has
- been ignored, and the previous choice has been
- restored.
- }
-
- IRQ conflict=
- { IRQ level conflict
-
- The IRQ level that you selected has already been
- allocated to some other function. Selecting this
- IRQ will result in a irresolvable conflict. So
- this selection has been ignored, and the previous
- selection has been restored.
- }
-
- DMA conflict=
- { DMA channel conflict
-
- The DMA channel that you selected has already
- been allocated to some other function. Selecting
- this DMA channel will result in a irresolvable
- conflict. So this selection has been ignored,
- and the previous selection has been restored.
- }
-
- MEMORY conflict=
- { MEMORY block conflict
-
- The MEMORY block that you selected has already
- been allocated to some other function. Selecting
- this MEMORY block will result in a irresolvable
- conflict. So this selection has been ignored,
- and the previous selection has been restored.
- }
-
- PORT conflict=
- { PORT block conflict
-
- The PORT block that you selected has already been
- allocated to some other function. Selecting this
- PORT block will result in a irresolvable
- conflict. So this selection has been ignored,
- and the previous selection has been restored.
- }
-
- No resources=
- {
- The current choice setting for this function is
- not using any system resources (IRQ, DMA, Ports,
- or Memory).
- }
-
- Insert Source=
- { Insert Source Diskette
-
- Insert the diskette that contains the {CFG Files}
- to be copied.
- }
-
- Insert Destination=
- { Insert Destination Diskette
-
- Insert the ECU diskette so the {CFG files} can be
- copied onto it.
- }
-
- ISA Definition Changed=
- {
- The ISA definition that you are editing has been
- changed since it was last saved. Press ENTER if
- you do not want to save the changes. Press ESC
- to abort the command and return to the editing
- screen.
- }
-
- ISA Definition Saved=
- {
- The ISA definition that you are editing has been
- saved in the ECU's internal ISA board database.
- }
-
- CFG Version=
- {
- This CFG file contains a statement that indicates
- that the CFG file is not compatible with this
- version of the ECU. The ECU may behave
- unpredictably if this CFG file is loaded.
- }
-
- Save before view=
- {
- You have made changes to the configuration, but
- have not saved it using Step 4. Any switch/jumper
- settings that are displayed before saving may be
- inaccurate.
- }
-
- CFG Files=
- { CFG Files
-
- The CFG file describes the adapter card
- characteristics and the system resources that it
- requires. Configuration information for the
- motherboard and each adapter card in an EISA
- system is provided in a configuration file (CFG
- file) read by the EISA Configuration Utility
- (ECU). The CFG file should be on a floppy disk
- provided with the EISA motherboard or EISA
- adapter card.
-
- ISA cards can also have CFG files. Older ISA
- adapter cards will not.
-
- The ECU reads all CFG files and optimally
- configures the EISA computer so there are no
- resource conflicts between the system and any
- adapter card. This configuration information is
- saved in {EISA CMOS RAM}.
-
- See also: {CMS File}
- {INF File}
- }
-
- CMS File=
- { CMS File
-
- The CMS file contains a copy of the configuration
- information that is written into the system's
- {EISA CMOS RAM}. The default name for a CMS file
- matches the ID of the system board that was used
- in the configuration. Each CMS file should have
- a corresponding INF file.
-
- See also: {CFG Files}
- {INF File}
- }
-
- INF File=
- { INF File
-
- The INF file contains detailed information about
- a configuration such as switch and jumper
- settings, software statements, connection
- statements, and resource allocation. The INF
- file is used by {Step 5} to recall information on
- a saved configuration. Each INF file should have
- a corresponding CMS file.
-
- See also: {CFG Files}
- {CMS File}
- }
-
- EISA Slot Numbers=
- { EISA Slot Numbers
-
- Each adapter card (EISA or ISA) is installed in
- an EISA or ISA expansion slot (connector) on the
- EISA motherboard. The slots are numbered from 1
- to n (n can be 1 through 15). The EISA
- motherboard is always slot 0.
-
- Each slot is given a unique I/O address space of
- 1024 bytes (1 KB). The BIOS uses the I/O ports
- and associated registers and the information
- written to {EISA CMOS RAM} to initialize the EISA
- slot devices during POST. If the slot device is
- an ISA adapter card, the I/O space is limited to
- 100h - 3FFh. The ECU displays the proper switch
- and jumper settings for the ISA device if a CFG
- file is provided with the device.
- }
-
- EISA CMOS RAM=
- { EISA CMOS RAM
-
- Initialization and configuration information is
- read by the ECU and stored in EISA CMOS RAM. A
- backup of CMOS RAM configuration data is also
- stored on disk. When the system is rebooted, the
- BIOS reads the CMOS RAM configuration data and
- executes the initialization instructions during
- POST. The initialization usually consists of
- writing to the I/O ports assigned to the slot
- device.
-
- EISA CMOS RAM is a small amount of nonvolatile
- memory on the system board. Configuration
- information is stored in EISA CMOS so that the
- BIOS can initialize the system (including adapter
- cards) at power up. The contents of EISA CMOS
- RAM is maintained by a battery. If the battery
- runs down, the contents of EISA CMOS may be lost.
- It is then necessary to either reconfigure the
- system or copy a backed up configuration into
- EISA CMOS RAM using the {Utilities} menu.
- }
-
-
-