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PS/2 MicroChannel Adapter Description | 1995-03-27 | 3.2 KB | 78 lines |
-
- AdapterId 07FF9h
-
- AdapterName "Iomega PC4 SCSI Host Adapter Board"
-
- NumBytes 2
-
- FixedResources pos[0]=X0XXXXXXb pos[1]=X11XXXXXb
-
-
- NamedItem
- Prompt "I/O Address Select"
- choice "240" pos[0]=XXXX001Xb io 00240h-0025Fh
- choice "340" pos[0]=XXXX010Xb io 00340h-0035Fh
- choice "400" pos[0]=XXXX011Xb io 00400h-0041Fh
- choice "420" pos[0]=XXXX100Xb io 00420h-0043Fh
- choice "3240" pos[0]=XXXX101Xb io 03240h-0325Fh
- choice "8240" pos[0]=XXXX110Xb io 08240h-0825Fh
- choice "A240" pos[0]=XXXX111Xb io 0A240h-0A25Fh
- choice "Disabled" pos[0]=XXXX000Xb
- Help
- "You may set the PC4 adapter to any one of the I/O Addresses
- listed. The first choice is recommended. Make your selection
- by using the F5=Previous or the F6=Next keys. If your selection
- conflicts with an I/O address already assigned in your system,
- it will be marked with an asterisk and you must select an
- alternate address."
-
-
- NamedItem
- Prompt "DMA Level Select"
- choice "DMA Level 5" pos[1]=1XXX0101b arb 5
- choice "DMA Level 6" pos[1]=1XXX0110b arb 6
- choice "DMA Level 7" pos[1]=1XXX0111b arb 7
- choice "DMA Disabled" pos[1]=0XXX0000b
- Help
- "The PC4 supports the direct memory access (DMA) mode of data
- transfer. Most operating systems require this option to be
- enabled. Each DMA level has a corresponding priority level;
- the lower the DMA level, the higher the corresponding priority.
- You may select any one of the DMA levels listed by using the
- F5=Previous or the F6=Next keys. We recommend you select the
- first level listed, DMA level 5. If your selection conflicts
- with a DMA level already assigned in the system, it will be
- marked with an asterisk and you must select an alternative level."
-
-
- NamedItem
- Prompt "Fairness"
- choice "Fairness Enabled" pos[1]=XXX1XXXXb
- choice "Fairness Disabled" pos[1]=XXX0XXXXb
- Help
- "If 'Fairness' is enabled, the PC4 adapter will not compete for
- the channel during the next arbitration phase if it is currently
- in control of the channel. This allows other installed adapters
- to obtain the channel in the next sequence based on each adapter's
- assigned priority level. When 'Fairness' is disabled, the adapter
- will compete for every arbitration phase and will obtain more than
- its fair share of channel usage. We recommend you use 'Fairness
- Enabled' for all adapters. Select this option using the F5=Previous
- and the F6=Next keys."
-
-
- NamedItem
- Prompt "IRQ level"
- choice "IRQ 7" pos[0]=1X10XXXXb int 7
- choice "IRQ 5" pos[0]=1X01XXXXb int 5
- choice "IRQ 3" pos[0]=1X00XXXXb int 3
- choice "IRQ 9" pos[0]=1X11XXXXb int 9
- choice "IRQ Disabled" pos[0]=0XXXXXXXb
- Help
- "Operation with multi-tasking operating systems may require the
- use of an IRQ signal when the PC4 requires processor service.
- No other adapter may be assigned the same IRQ level as the PC4.
- For DOS-only systems, this option may be disabled. Choices are:
- IRQ 3, 5, 7, 9, or Disabled. Select this option using the
- F5=Previous and the F6=Next keys."
-