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140703
HEX Range
Usage
0340h-03E7h Reserved *
0376h IDE1 Controller
0378h-037Bh LPT (Default)
03E8h-03EFh COM3 (Default)
03F0h-03F5h Reserved
03F6h IDE0 Controller
03F8h-03FFh COM1 (Default)
04D0h-4D1h Interrupt Controller
0564h-0568h Advanced Watchdog
0CF9h Reset Generator
This product utilizes a LPC to ISA Bridge to address the PC/104 bus. The majority of legacy PC/104 modules are I/O
mapped and function as expected. However, neither DMA nor memory mapped PC/104 modules are supported with this
product. The PC/104-
Plus
PCI signals are completely supported.
* The ICH8M limits the LPC (ISA) decode ranges to four windows, two of which can be adjusted in the BIOS. For
example, the 0300-033Fh range can be changed to 0600-06FFh so the full 256 bytes are available for PC/104 modules.
Resources addressed internally may still exist in these ranges so please check the I/O map for availability.
The advanced watchdog timer is the only on-board device affected by adjusting LPC (ISA) decode range. It will not be
available if the 0564-0568h decode range is disabled.
The default is for the PC/104 decode ranges are shown below. Please contact an Applications Engineer if you have
questions regarding the decode ranges.
0100-013Fh
64 Bytes
(Fixed)
0200-02FFh
256 Bytes
(Fixed)
0300-033Fh
64 Bytes
(BIOS Selectable)
0500-05FFh
256 Bytes
(BIOS Selectable)