srt512 STMicroelectronics, srt512 Datasheet - Page 37

• Manufacturer Part Number: srt512
• Description: 13.56 Mhz Short-range Contactless Memory Chip With 512-bit Eeprom And Anticollision Functions
• Manufacturer: STMicroelectronics

SRT512
8.10
Unique Identifier (UID)
Members of the SRT512 family are uniquely identified by a 64-bit Unique Identifier (UID).
This is used for addressing each SRT512 device uniquely after the anticollision loop. The
UID complies with ISO/IEC 15963 and ISO/IEC 7816-6. It is a read-only code, and
comprises (as summarized in
Figure 47. 64-bit unique identifier of SRT512
Figure 48. GET_UID frame exchange between Reader and SRT512
Power-On state
After Power-On, the SRT512 is in the following state:
SRT512
Reader
an 8-bit prefix, with the most significant bits set to D0h
an 8-bit IC Manufacturer code (ISO/IEC 7816-6/AM1) set to 02h (for
STMicroelectronics)
a 6-bit IC code set to 00 1100b = 12d for SRT512
a 42-bit Unique Serial Number
It is in the low-power state.
It is in READY state.
It shows highest impedance with respect to the reader antenna field.
It will not respond to any command except INITIATE().
S
O
F
0Bh
CRC L CRC H
63
Most significant bits
D0h
E
O
F
<-t 0 -> <-t 1 ->
55
02h
Figure
47
12d
47):
41
S
O
F
UID
0
UID
Unique Serial Number
1
UID
2
Least significant bits
UID
3
UID
4
AI14080
UID
5
0
UID
6
SRT512 commands
UID
7
CRC L CRC H
AI13515b
37/49
E
O
F