Kontron ETX-CD User Manual download pdf (Page 33)

ETX®-CD / Features and Interfaces

4.10 ISA Bus Limitation

Memory accesses are not supported on the ISA bus. I/O accesses are only supported if they fall into one of the 4 generic

decode ranges provided by the chipset. If a plugin ISA card is using registers in I/O space, this address range has to be

enabled explicitely using the decode range and size setup items provided under the menu “Advanced” “Advanced→

Chipset Control” “ISA Options”. →

The following devices may also consume a generic decode range which can no longer be used for plugin cards. “Advanced”

“I/O device Configuration” “SIO Options”→ →

» “External SIO”: SIO2 config space, if this range is released (item set to disabled), none of the devices in the

external SIO will work

» Serial Port C/D: consumes one range if either one or both COMs are enabled

» External LPT: Consumes one range if enabled

“Advanced” “Hardware Monitor”→

» “Hardware Monitor”: consumes one range if enabled, disable if you don't require HWM support.

the BIOS doesn't check the range and size values set in the ISA Options menu. Ensure that

theses values do not conflict with other legacy and PCI I/O resources. Resource conflicts

may render the board inoperable.

If the number of generic decode ranges is exhausted, a conflict marker will be displayed

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 87 88

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Kontron ETX-CD User Manual Page 33