Omron V600-CA1A Operation Manual page 15

V600 series r/w heads and sram data carriers
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Data Carriers
When Executing the
Write Protect Function
Examples
1, 2, 3...
Address
7
0002
YES/
H
NO
0003
Rightmost two digits of beginning address
H
0004
Leftmost two digits of ending address
H
0005
Rightmost two digits of ending address
H
The region specified by the beginning and ending addresses will be protected
when the write protect control bit (leftmost bit of address 0002
in the following table.
Leftmost bit of
0002
H
ON
OFF
Area that can be set:
Beginning address:
Ending address:
1. The following settings would write-protect addresses 0015
(i.e., the beginning address to the ending addresses):
Address
Bit
7 6
5 4
0002
1 0
0 0
H
8
0003
0 0
0 1
H
1
0004
0 0
0 0
H
0
0005
0 0
1 0
H
2
2. To write-protect only 1 byte, set the same address as the start and ending
addresses (beginning address = ending address).
Address
É É É É É
1 byte
3. If the ending address exceeds the last address of the Data Carrier memory
(ending address > 1FFF
tected:.
Address
0000
H
É É É É É
1FFF
H
É É É É É
4. If the beginning address is greater than the ending address (beginning
address > ending address), the write-protected area will wrap through
0006
, so that addresses from 0006
H
the beginning address through 1FFF
6
5
4
Leftmost two digits of beginning address
Write Protect Function
Data is write-protected.
Data is not write-protected.
0006
to 1FFF
H
H
0006
to 1FFF
H
H
Address
3 2
1 0
0000
É É É É É É
H
0 0
0 0
0015
É É É É É É
H
0
to
É É É É É É
0 1
0 1
0120
H
É É É É É É
5
0 0
0 1
1
1FFF
H
0 0
0 0
0
Write-protected address
), the addresses up to 1FFF
H
Write-protected addresses
through the ending address,and from
H
H
Section
Bit
3
2
1
) is ON, as shown
H
through 0120
H
Write-protected
addresses
will be write-pro-
H
will be write-protected.
2-2
0
H
11

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