User's Manual Part 2
Table Of Contents
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Hi-G-Tek Ltd. Microelectronics & Asset Tracking Technology
111
5
System
5.9.2. User Data
USER DATA is the memory segment where free data for electronic
manifests can be written and read. To use the USER DATA memory,
the Write and Read Data commands should be used. Memory size is
2K.
Special attention should be taken at the lower portion of the memory.
The DataTerminal supports the lower portion of the USER DATA
memory. The following instructions should be maintained to ensure
full compatibility between the DataReader channel and the
DataTerminal channel:
Memory map of the lower portion.
Address 1 Byte width
Address 0 UDT Version
Address 1 Time & Date
Address 2 Time & Date
Address 3 Time & Date
Address 4 Time & Date
Address 5 Data
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Address 52 Data
The value Version is the lower nibble of the address 0 and is the
version of the USERDATA format.
The value UDT is the upper nibble of the address 0 and is a number
assigned the data base configuration by the User.
Using this UDT, the system can perform an integrity check of the
USERDATA in the system.