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8 System Resources
Kontron User's Guide ETX CD 52
5 Yes
6 Yes
7 Yes
8.3 Memory Area
Upper Memory Used for Available Comment
C0000h – CFFFFh VGA BIOS No
D0000h – DDFFFh Yes shadow RAM (ISA bus restriction)
DE000h – DFFFFh USB registers No
E0000h – FFFFFh System BIOS No
8.4 I/O Address Map
The I/O-port addresses of the ETX®-CD are functionally identical with a standard PC/AT.
The following I/O ports are additionally used:
I/O Address Used for Available Comment
220-227h COM3 Available if external I/O controller not used.
228-22Fh COM4 Available if external I/O controller not used.
2F8-2FFh COM1 No Available if device is disabled in setup
370-371h
Configuration
space for SMC
controller
No Available if external I/O controller not used.
3F8-3FFh COM2 No Available if device is disabled in setup
1000h > PCI No
I/O ports 1000h and above might be allocated by PCI devices or
onboard hardware.
8.5 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.
8.6 Inter-IC (I2C) Bus
I2C Address Used For Available Comment JIDA-Bus-Nr.
A0h JIDA-EEPROM No EEPROM for CMOS data. 0
A2h JIDA-EEPROM No 0
B0h WD-PIC No Reserved for internal use. 0
8.7 System Management (SM) Bus
Following SM bus addresses are reserved.
SM Bus Address SM Device Comment JIDA-Bus-Nr.
10h SMB Host Do not use under any circumstances. 1
12h SMART_CHARGER Not to be used with any SM bus device except a charger 1
14h SMART_SELECTOR Not to be used with any SM bus device except a selector 1
16h SMART_BATTERY Not to be used with any SM bus device except a battery 1
A0h SPD SDRAM EEPROM 1