6 - 2
6 - 2
6. HOW TO COMMUNICATE WITH ID TAGS
6.2 Instruction/Specification List
The following describes the instruction types and specification contents that can be
used with the RFID interface module.
Table 6.1 Instruction/Specification List
Command
Name
Command
Code
(Un
\
G0,
Un
\
G4000
)
Communication
Specification
(Un
\
G1,
Un
\
G4001)
Processing
Specification
(Un
\
G2,
Un
\
G4002)
Head Address
Specification
Range
(Un
\
G3,
Un
\
G4003)
Range of No. of
Processed Bytes
(Un
\
G4,
Un
\
G4004)
Command
Option
(Un
\
G5,
Un
\
G4005)
UID Range
(Un
\
G90 to
Un
\
G93,
Un
\
G4090 to
Un
\
G4093)
Stored Data
(Un
\
G100 to
Un
\
G1123,
Un
\
G4100 to
Un
\
G5123)
Reference
Read
0000
H
Read data
Section
6.2.1
Write
0001
H
0001
H
to 0800
H
Write data
Section
6.2.2
Set bit
0002
H
Set bit specification
data
Section
6.2.3
Clear bit
0003
H
Clear bit
specification data
Section
6.2.4
Write
mask bit
0004
H
Data storage order
0000
H
:
Upper -> Lower
0001
H
:
Lower -> Upper
-
Mask data
(0000
H
to FFFFFFFE
H
)
+ write data
Section
6.2.5
Write
calculation
0005
H
0000
H
: Addition
0001
H
:
Subtraction
0001
H
to 0004
H
Calculation data
0000
H
to FFFF
H
Calculation result
Section
6.2.6
Fill data
0006
H
0000
H
: Trigger
0001
H
: Auto
0002
H
:
Repeat auto
0003
H
:
FIFO trigger
0004
H
:
FIFO repeat
0005
H
:
Multi-trigger
0006
H
:
Multi-repeat
Data storage order
0000
H
:
Upper -> Lower
0001
H
:
Lower -> Upper
0000
H
to FFFF
H
0001
H
to 0800
H
0000
H
:
All data specified
Fill data
0000
H
to FFFF
H
Section
6.2.7
Check
data
0007
H
0000
H
: Calculation
0001
H
: Verification
0003
H
to 0800
H
-
-
Section
6.2.8
Control
number of
writes
0008
H
0000
H
: Addition
0001
H
:
Subtraction
0000
H
to
FFFD
H
-
(Fixed to 0003
H
)
No. of additions/
subtractions
0000
H
to 00FF
H
UID
No. of times
calculation result
Section
6.2.9
Copy
0009
H
0000
H
: Trigger
0001
H
: Auto
-
Copy source
address (read)
0000
H
to FFFF
H
0001
H
to 0800
H
Copy destination
address (write)
0000
H
to FFFF
H
- -
Section
6.2.10
Read with
error
correction
000A
H
Read data
Section
6.2.11
Write with
error
correction
000B
H
Data storage order
0000
H
:
Upper -> Lower
0001
H
:
Lower -> Upper
0000
H
to
FFFA
H
0001
H
to 01FE
H
Write data
Section
6.2.12
Read UID
000C
H
0000
H
: Trigger
0001
H
: Auto
0002
H
:
Repeat auto
0003
H
:
FIFO trigger
0004
H
:
FIFO repeat
0005
H
:
Multi-trigger
0006
H
:
Multi-repeat
-
Section
6.2.13
Measure
noise
0010
H
-
- - -
-
UID
Measurement result
Section
6.2.14
6.2.1 Read
The Read command reads data from the ID tag starting from the address specified in
the head address specification area (Un
\
G3, Un
\
G4003), in an amount equivalent to
the number of bytes specified in the number of processed points specification area
(Un
\
G4, Un
\
G4004).
The read data are stored in the data storage area (Un
\
G100 to Un
\
G1123, Un
\
G4100
to Un
\
G5123).
6.2.2 Write
The Write command writes data to the ID tag starting from the address specified in the
head address specification area (Un
\
G3, Un
\
G4003), in an amount equivalent to the
number of bytes specified in the number of processed points specification area (Un
\
G4,
Un
\
G4004).
The data to be written are stored in the data storage area (Un
\
G100 to Un
\
G1123,
Un
\
G4100 to Un
\
G5123).
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