27
Memory Map of Data Carrier
Section 4-2
Contents of Production Date Area
Note
1.
Lower 2 digits of year are recorded (1991 –> “91”).
2.
Month is expressed in two digits (June –> “06,” October –> “10”).
Example: June, 1991
Note The battery life of the Data Carrier can be managed not only by reading the
sticker on the battery, but also by the host computer through software by
using a read command.
4-2-3
Write Protect Function
The write protect function protects important data stored in the memory of the
Data Carrier, such as product number and model, from inadvertent write
access. With this function, the data in a specified memory area can be pro-
tected. It is recommended that important data be write-protected as follows:
Setting Write Protect Function
The write protect function is set by 4 bytes of the addresses 0002 through
0005 of the Data Carrier’s memory. Whether or not the write protect function
is effected is specified by the most significant bit of address 0002.
Write protect execution bit (most significant bit of address 0002)
1: Write-protected
0: Not write-protected
Setting area:
Note Use addresses 0002 through 0005 as a write protect area.
Address
Bit
7
6
5
4
3
2
1
0
0000
Digit 10 of month
Digit 1 of month
0001
Digit 10 of year
Digit 1 of year
Address
Bit
7
6
5
4
3
2
1
0
0000
0
0
0
0
0
1
1
0
0
6
0001
1
0
0
1
0
0
0
1
9
1
Address
Bit
7
6
5
4
3
2
1
0
0002
YES/
NO
Higher 2 digits of start address
0003
Lower 2 digits of start address
0004
Higher 2 digits of end address
0005
Lower 2 digits of end address
Address
2 KB type
8 KB type
Start address
0006 to 07FF
0006 to 1FFF
End address
0006 to 07FF
0006 to 1FFF
Summary of Contents for V600 RFID System
Page 1: ...OPERATION MANUAL Cat No Z193 E1 01 Board Type ID Controller V600 RFID System V600 CM1D...
Page 2: ...V600 RFID System V600 CM1D Board Type ID Controller Operation Manual Produced December 2003...
Page 3: ...iv...
Page 7: ...viii...
Page 10: ...xii...
Page 16: ...6 User I O Section 1 4...
Page 24: ...14 Outline Size Section 2 5...
Page 60: ...50 Communication Time Section 4 6...
Page 82: ...72 Index...
Page 84: ...74 Revision History...
Page 87: ...V6001 RFID System V600 CM1D Board Type ID Controller Cat No Z193 E1 01 OPERATION MANUAL...