User`s manual

CZGA LX-50 CyberResearch
®
CPU Cards
134 ©Copyright 2009 CyberResearch, Inc.
The IT8888 ISA Decode IO menu has the following common options:
 Decode Memory Space N
 Decode Memory Speed N
 Decode Memory Addr. N [15:0]
 Decode Memory Size N
Where N is an integer in the set [1, 2, 3, 4, 5] and represents a memory set for the PCI-104
devices that are attached to the system.
Î Decode Memory Space N [Enabled]
Use the Decode IO Memory N option to allocate memory resources to the ISA bridge and
to enable the PCI-104 to function correctly.
Î
Disabled
The Nth memory set is disabled and the system
memory resources are reallocated to other applications.
Î
Enabled
D
EFAULT The Nth memory set is enabled and dedicated system
memory resources are allocated to the ISA bus.
Î Decode Memory Speed N [Fast Speed]
Use the Decode Memory Speed N option to specify the memory speed of the ISA bus.
The following options are available:
 Subtractive Speed
 Slow Speed
 Medium Speed
 Fast Speed (DEFAULT)
Î Decode Memory Address N [xx]
Use the Decode Memory Address N option to allocate an address to the memory of the
ISA bus. The address may range from 0001 to FFFF.