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Commands
Enhanced buffered fixcode (EF)
Command:
Response:
The R/W head makes attempts until successful to read a read only code. Only
data that changes is transferred via the interface, i.e. the R/W head transfers data
whenever it reads a new read/write tag or whenever it reads a read/write tag
where there was previously no read/write head within the detection range.
The status '05h' (read command) is output whenever a read/write tag leaves the
detection range.
The length of the read only code that is output depends on the tag type. See table
"Supported Tag Types" on page 35.
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (1Dh)
0
0
0
1
1
1
0
1
Byte 1
Reserved/Ident channel/Toggle bit
-
-
-
-
<Channel>
<T>
Byte 2
not used
-
-
-
-
-
-
-
-
Byte 3
not used
-
-
-
-
-
-
-
-
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (1Dh)
0
0
0
1
1
1
0
1
Byte 1
Reserved/Ident channel/Toggle bit
-
-
-
-
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
ID code 00h ... FFh
<ID code>
Byte 5
ID code 00h ... FFh
<ID code>
...
ID code 00h ... FFh
<ID code>
Byte N
1)
ID code 00h ... FFh
<ID code>
Table 7.2
1) N = <FixLen> + 3