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Chapter 22
22. Special Hardware Hints
22.1 ISA Bus Limitations
The PC/104 ISA bus implementation
16 bit DMA cycles (located at DMA5 – DMA7) are not supported
®
An ISA device ma
®
ported
Simultaneous usa
®
Using ISA graphic cards, certain high color depth graphic modes may show disturban-
®
ces i.e. vertical lines. This is due to non-optimum timings in the FINTEK ISA-Bridge,
which cannot be fixed.
22.2 PCI Bus Limitations
The PC/104+ PCI bus implementation has the following three restrictions:
Only 3.3V PCI boards/cards are supported (do not use 5V PCI boards/cards without
®
Level-Shifter)
Only PCI boards/cards with speed of 33 MHz will be run
®
Some problems exists when using the KONTRON ADA9 PC/104+ Evaluation Board (re-
®
fering to PCI Slots). KONTRON can not guarantee that all PCI cards runs error-free
22.3 Memory Issues
In case you encounter problems during file operations (i.e. copy procedure during Windows installation),
these can usually be fixed by decreasing the memory speed. Changing the modul is not necessary, since the
modules are working correctly with lower memory speeds.
22.4 Security Block
The standard version of AMD LX800 doesn't contain a EEPROM for storing a hidden key. Please, contact
Kontron for further information about the usage of the EEPROM-variation.
Kontron User's Guide MOPSlcdLX
has the follo
wing fou
r restrictions:
y take con
trol of the bus
ge of Sta
ndard Floppy and DMA cycles is not possible
38
Special Hardware Hints
(ISA bus
master mode). This mode is not sup-
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