Chapter 6. IBM System Management Tools
Data can be written and read through either the RF interface to the system or the SMBus. Writing and
reading via the RF interface requires a portable hand held reader or door reader. Software residing in the
hand held reader and portal gate controller are required to support the RF interface. Access to the EAI
area data from the system side is provided by the DMI browser provided with the software.
When data is written to the EIA through the SMBus it is done either dynamically or statically and depends
on the data. Dynamic update of some of the data is done either by the system BIOS or by the AssetCare
software each time it is loaded by obtaining the information directly from the device or operating system.
Other types of information must by entered and updated by a system administrator or other authorized
person. All data entered into the EAI area must be associated with one of the device types defined in
Figure 22.
Although every device entered must use one of the device types defined, the inclusion of a specific entity
in the EAI area is optional. However, to get maximum utility from the EAI hardware, the data should be as
complete and accurate as possible.
Figure 20. Enhanced Asset Information Area
Device Address
Word Address
Block
Description
RF Access
System Access
A8
00-7F
0
Serialization
Information Area
Read only
Read/write
A8
80-FF
1
Serialization
Information Area
Read only
Read/write
AA
00-7F
2
User Information
Area
Read/write
Read/write
AA
80-FF
3
User Information
Area
Read/write
Read/write
AC
00-7F
4
Configuration
Information Area
Read only
Read only
AC
80-FF
5
Configuration
Information Area
Read only
Read only
Chapter 6. IBM System Management Tools
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