A.3 i/o address map, Pitx-sp user's guide – Kontron pITX-SP User Manual
Page 58
KTD-S0002-I
Page 53
Appendix A: System Resources
p
ITX-SP User's Guide
A.2 Memory
Area
The first 640 kB of DRAM are used as main memory. DOS can address 1 MB of memory directly. Memory area
above 1 MB (high memory, extended memory) is accessed under DOS via special drivers such as HIMEM.SYS.
Other operating systems (Linux or Windows
®
versions) allow you to address the full memory area directly.
Memory Range
Used for
Available
Comment
C0000h - CFFFFh
VGA BIOS
No
D0000h - DFFFFh
Yes
E0000h - FFFFFh
System BIOS
No
A.3
I/O Address Map
The I/O port addresses of the pITX-SP are functionally identical to a standard PC/AT. All addresses not
mentioned in this table should be available. We recommend that you do not use I/O addresses below 0100h
with additional hardware for compatibility reasons even though they are available.
I/O Address
Used for
Available
Comment
01F0h - 01F7h
Parallel-ATA Controller (P-ATA)
No
Note (1)
03B0h - 03DFh
Graphic Controller
No
0400h - 043Fh
SMBus
TM
No
Chipset
0480h - 04BFh
GPIO
No
Chipset
04D0h - 04D1h
PIC Extension
No
Chipset
0900h - 091Fh
Power Management
No
Chipset
09C0h - 09FFh
GPE
No
Chipset
0A80h - 0A81h
System Extension
No
CPLD
0CF8h - 0CFFh
PCI Configuration
No
Chipset
C080h - C083h
Serial-ATA Controller (S-ATA)
No
Onboard PCI Express
®
device Note (1)
C480h - C483h
Serial-ATA Controller (S-ATA)
No
Onboard PCI Express
®
device Note (1)
C880h - C883h
Serial-ATA Controller (S-ATA)
No
Onboard PCI Express
®
device Note (1)
CE80h - CE8Fh
Serial-ATA Controller (S-ATA)
No
Onboard PCI Express
®
device Note (1)
CF00h - CF03h
Serial-ATA Controller (S-ATA)
No
Onboard PCI Express
®
device Note (1)
D880h - D887h
LAN Controller
No
Onboard PCI Express
®
device Note (1)
E080h - E09Fh
USB Controller
No
Chipset Note (1)
E480h - E49Fh
USB Controller
No
Chipset Note (1)
E880h - E887h
Graphic Controller
No
Chipset
EF00h - EF1Fh
USB Controller
No
Chipset Note (1)
FFA0h - FFAFh
Parallel-ATA Controller (P-ATA)
No
Chipset Note (1)
Note:
1)
If the
Used for device is disabled in the BIOS Setup the corresponding address is free.