
AdapterId 07FFAh

AdapterName "IOMEGA PC4B-50 SCSI Host Adapter Board"

NumBytes 4

FixedResources            pos[0]=00XXXXXXb   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
  Help
"The PC4 supports the direct memory access (DMA) mode of data
transfer.  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 9"               pos[0]=XX11XXXXb pos[2]=1XXXXXXXb int 9
      choice "IRQ 7"               pos[0]=XX10XXXXb pos[2]=1XXXXXXXb int 7
      choice "IRQ 5"               pos[0]=XX01XXXXb pos[2]=1XXXXXXXb int 5
      choice "IRQ 3"               pos[0]=XX00XXXXb pos[2]=1XXXXXXXb int 3
      choice "IRQ Disabled"                         pos[2]=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."


NamedItem
  Prompt "Memory Address Select"
      choice "C800"        pos[3]=XXXXX001b mem 0c8000h-0c9fffh
      choice "CA00"        pos[3]=XXXXX010b mem 0ca000h-0cbfffh
      choice "CC00"        pos[3]=XXXXX011b mem 0cc000h-0cdfffh
      choice "CE00"        pos[3]=XXXXX100b mem 0ce000h-0cffffh
      choice "D000"        pos[3]=XXXXX101b mem 0d0000h-0d1fffh
      choice "D200"        pos[3]=XXXXX110b mem 0d2000h-0d3fffh
      choice "D400"        pos[3]=XXXXX111b mem 0d4000h-0d5fffh
      choice "Disabled"    pos[3]=XXXXX000b 
  Help
"You may set the PC4 adapter to any one of the Memory 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 memory address already assigned in your system,
it will be marked with an asterisk and you must select an
alternate address."
