User's Manual

ACGPass e-ID Desktop Reader, Ver. Dual ISO 2.3
6.1.3 Lock byte
The lock byte defines the write access condition of a pair of pages. Each bit can only
be set once. This procedure is irreversible. This byte is implemented as an OTP.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Page 0Eh
Page 0Fh
Page 0Ch Page 0Dh
Page 0Ah Page 0Bh
Page 08h Page 09h Page 06h Page 07h Page 04h Page 05h Page 02h Page 03h Page 00h Page 01h
Figure 6-3: Lock byte
6.1.4 Chip ID
The Chip ID is defined in the low nibble of page 0Fh. It is manufacturer set and is
used internally to select and separate single tags.
6.2 SRIX4K
The SRIX4K label contains 512 bytes of data organized into four-byte pages.
6.2.1 Memory organization
Block
address
Byte 3 Byte 2 Byte 1 Byte 0
FFh OTP Lock Reg ST Reserved ST Reserved Fixed Chip ID
7Fh User data
… …
07h User data
06h 32 bits binary counter
05h 32 bits binary counter
04h 32 bits Boolean Area
03h 32 bits Boolean Area
02h 32 bits Boolean Area
01h 32 bits Boolean Area
00h 32 bits Boolean Area
Figure 6-4: SRIX4K memory organization
6.2.2 Lock block
Locking of blocks is not supported with this tag.
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