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(5) Write Protection
The Write Protection command is used to set or turn off write protection on Tag.
n
Command
The pages to set or turn off write protection on will be transmitted as parameters.
Page specifications shall be made by specifying the bit indicating the page as 1 and
the other bits as 0. If set and turn off were specified for the same page, the set
command will have priority.
Command
Option
Setting specification (8 characters)
Turn off specification (8 characters)
“0”
“8”
Cr
Bit
7 6 5 4
1 0 7 6
1 0 7 6
1 0 7 6
2
1
0
Page
3
0
2
9
2
8
2
7
~
2
4
2
3
2
2
2
1
~
1
6
1
5
1
4
1
3
~
8 7 6 5
~
1
*
*
Value
“00” ~ “FF”
“00” ~ “FF”
“00” ~ “FF”
“00” ~ “FC”
* 0,1 bits should be specified as 0. When 1 is specified, it will register as an error
(error code 14).
Command
code
Setting specification (8 characters)
“0”
“0”
Cr
Bit
7 6 5 4
1 0 7 6
1 0 7 6
1 0 7 6
2
1
0
Page
3
0
2
9
2
8
2
7
~
2
4
2
3
2
2
2
1
~
1
6
1
5
1
4
1
3
~
8 7 6 5
~
1
*
*
Value
“00” ~ “FF”
“00” ~ “FF”
“00” ~ “FF”
“00” ~ “FC”
* 0, 1 bits are indicated as 0.
n
Response
The completion code (“00” when successful) and write protection status information
will be transmitted.
(6) ACK
ACK is transmitted after FIFO Continue is operated and the response is
received to allow reading of the following:
n
Command
Command
Terminator
“1”
“1”
Cr
n
Response
There is no response.
(Data 4)
(Data 3)
(Data 2)
(Data 1)
(Data 4)
(Data 3)
(Data 2)
(Data 1)
(Data 4)
(Data 3)
(Data 2)
(Data 1)