TME-104P-CSR-LX800-R1V11.doc
Rev 1.11
40 (50)
ISA I/O and Memory Configuration
allows setting the board’s ISA memory and I/O map.
The
DDMA Configuration
allows activating ISA DMA for channel 0 to 7.
By default the following I/O and Memory Ranges are mapped to ISA and NOT accessible for other devices any
more:
I/O:
Range-0: 100h-17Fh
Range-1: 17Fh-1BFh
Range-2: 1C0h-1DFh
Range-3: 200h-27Fh
Range-4: 300h-33Fh
Range-5: 340h-35Fh
Memory: Range-0: C8000h-CFFFFh
Range-1: D0000h-DFFFFh
If a PCI device (e.g. on an external adapter) needs some of these ranges, the space has to be freed, because the
system is NOT Plug and Play!
Otherwise, if an external ISA card needs additional I/O or Memory space, the above ranges need to be
reconfigured.
Note:
You need to know exactly the resources that are needed by external cards
in order to setup the BIOS correctly! Otherwise it may be that some cards
do not work properly!