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ACG HF Multi ISO RFID Reader V1.0
8.3 Write access condition
Page 02h contains the write access condition for each page. Each page can be set to
read only (bits are set to 0). This procedure is irreversible. Locking page 2 no further
changed of the access condition can be done. Always two bits must be change at the
same time. This register is implemented as OTP.
Byte 0 Byte 1 Byte 2 Byte 3
MSB LSB MSB LSB MSB LSB MSB LSB
1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
3 2 1 0 7 6 5 4 B A 9 8 F E D C
Special
function
Write
access
Serial
number
Serial
number
User
data
User
data
Figure 8-2: Write access condition bytes
8.4 Special function (EAS), AFI
Special Functions (EAS) and Family Code/Application Identifier are additional
features. For more information refer to the ICODE® manual.
8.5 User data
All other blocks are free for use and can be changed according the state of the write
access conditions.
9 ICODE EPC
ICODE EPC labels data is stored in a OTP memory. Its capacity is 136 bits
organized in 17 blocks consisting of 1 bytes each. All MSB of the different fields
(EPC, CRC16, Destroy Code) are located at the lowest block address.
9.1 Memory organization
Page
address
Byte
14h 16h Destroy Code
12h 13h CRC 16
00h 11h EPC
Figure 9-1: ICODE EPC memory organization
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