3 - 11
3 - 11
3. SPECIFICATIONS
(3) Processing specification area (Un
\
G2, Un
\
G4002)
This area is used to select the processing specification contents according to the
commands used.
Table 3.7 Processing specification list
Name
Specification
Contents
Processing
Contents
Applicable Commands
0000
H
Upper ->
Lower
Data storage
order
0001
H
Lower ->
Upper
Read, Write, Set Bit, Clear Bit, Write Mask Bit, Fill Data,
Read with Error Correction, Write with Error Correction,
Read System
0000
H
Addition
Calculation
method
0001
H
Subtraction
Write Calculation, Control No. of Writes
0000
H
Calculation
Calculation/Verifi
cation
0001
H
Verification
Check Data
(a) Data storage order setting example
Within ID tag memory, data are processed in units of bytes (8 bytes). Since data
are processed in units of words in the RFID interface module, one of the
following two data storage orders is selected and specified.
1. Upper -> Lower
Buffer memory
4241
H
4241
H
4443
H
42
H
41
H
44
H
43
H
4443
H
Buffer memory
ID tag
2. Lower -> Upper
4241
H
4241
H
4443
H
41
H
42
H
43
H
44
H
4443
H
Buffer memory
Buffer memory
ID tag
