CyberResearch CPEN GX-333-X User Manual download pdf (Page 154)

CZGA LX-50 CyberResearch

CPU Cards

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.

Disabled

The Nth memory set is disabled and the system

memory resources are reallocated to other applications.

Enabled

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.

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CyberResearch CPEN GX-333-X User Manual Page 154