Kontron ETX-DC - Peripheral Component Interconnect (PCI) Devices

ETX-DC®/ System Resources
42
8.2 Memory Area
Upper Memory
Used for
Available
Comment
C0000h – CFFFFh
VGA BIOS
No
D0000h – DFFFFh
Yes
ISA bus or shadow RAM
E0000h – FFFFFh
System BIOS
No
8.3 I/O Address Map
The I/O-port addresses of the ETX®-DC are functionally identical with a standard PC/AT.
The following I/O ports are used:
I/O Address
Used for
Available
Comment
2E8-2Efh
COM4
No
Available if external I/O controller not used.
370-371h
Configuration
space for SMC
controller
No
Available if external I/O controller not used.
3E8-3Efh
COM3
No
Available if external I/O controller not used.
480-4BFh
Chipset
No
Always used by chipset.
800-87Fh
Chipset
No
Always used by chipset.
A00-A10h
Chipset
No
Always used by chipset.
1000h >
PCI
No
I/O ports 1000h and above might be allocated by PCI devices or
onboard hardware.
8.4 Peripheral Component Interconnect (PCI) Devices
PCI Device
Busmaster
PCI Interrupt
Comment
Audio, USB and
Ethernet
See IRQ resource
tables above
Integrated in the Intel chipset. No REQx/GNTx pair needed.
You can use REQ0/GNT0, REQ1/GNT1, REQ2/GNT2, and REQ3/GNT3 pairs for external PCI devices.
8.5 Inter-IC (I2C) Bus
I2C Address
Used For
Available
Comment
A0h
JIDA-EEPROM
No
EEPROM for CMOS data.
A2h
JIDA-EEPROM
No
8.6 System Management (SM) Bus
Following SM bus addresses are reserved.
SM Bus Address
SM Device
Comment
10h
SMB Host
Do not use under any circumstances.
12h
SMART_CHARGER
Not to be used with any SM bus device except a charger
14h
SMART_SELECTOR
Not to be used with any SM bus device except a selector
16h
SMART_BATTERY
Not to be used with any SM bus device except a battery
A0h
SPD
SDRAM EEPROM
D2h
Clock generator
Do not use under any circumstances.