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Expansion Buses
Note
Some information in this section may change as the BIOS continues in
development.
PC/104-P
LUS
PC/104-Plus and PCI-104 modules can be secured directly to the top of the Iguana. Make sure to
correctly configure the slot position jumpers on each PC/104-Plus module appropriately. PC/104
(ISA only) modules must not be positioned between the Iguana and any PC/104-Plus or PCI-104
modules in the stack.
The VL-EPIC-25 is compliant with revision 2.0 of the PC/104-Plus specification and can support
four bus master capable PC/104-Plus modules.
The BIOS automatically allocates I/O and memory resources. However, manual PCI Interrupt
routing is used.
The following table shows the maximum PC/104-Plus slot power on the Iguana.
PC/104 ISA
The Iguana provides full support of the PC/104 bus, with the following exceptions:
-5.0V power is not supplied on J7 pin B5. This pin is not connected.
The ISA bus cannot be mastered by an external module. The Iguana is always the bus
master. The MASTER signal on pin D17 of J8 is not connected.
DMA not supported.
Most PC/104 cards will work, but be sure to check the requirements of your PC/104 card against
the list above.
VL-EPIC-25 Reference Manual
Interfaces and Connectors
(PCI + ISA)
PCI-104 (PCI O
AND
Table 5: Maximum PC/104-Plus Slot Power
Voltage
+5V
+3.3V
+12V
-12V
)
NLY
Max. Current
8A
4A
1A
0.5A
5
5
27
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