Memory Map of Tag
Section 2-4
2-11
2-4 Memory Map of Tag
These specifications describe a Tag incorporating an IC chip I- CODE1
Label IC (product name: SL1 ICS30 01) from Philips, which is accessed by
the system.
This chip consists of a 64-byte memory. The upper five blocks (Blocks 0 to 4)
of the memory are used as a system area having functions that do not relate
to user memory. OMRON offers special commands for accessing this area
in order to ensure the great ease of these functions by the user.
Refer to 5-4 "System commands" for details.OMRON defines the blocks
below Block 5 as the user memory area. Block 5 is page 00, and the
subsequent blocks are allocated as shown below.
The memory is organized with four bytes as one page (4 bytes = 32 bits).
One page is the minimum unit that can be read from and written to the
memory.
The memory allocation described in these specifications is in accordance
with OMRON's memory allocation scheme.
OMRON
PHILIPS
(Page)
byte 3
byte 2
byte 1
byte 0
(Block)
FB SNR
(Tag-specific
code) 0
FC SNR
(Tag-specific
code) 1
FD Write-protect 2
FE QUIET/EAS 3
FF
Family code /application ID or user area
4
00 User
area 5
01 6
02 7
03 8
04 9
05 10
06 11
07 12
08 13
09 14
0A
15
Special note
Block 4 can be used as part of the user memory when the
Distinguished Tag Read/Write function by family code (FC) or
application ID (AI) is not used. If such use is preferred, define this
page as FF to use it as part of the user memory. In this case, the
user memory area becomes 12 pages long.
12 page
(48 Byte)
11 page
(44 Byte)
