SRI4K-A3T/1GE STMicroelectronics, SRI4K-A3T/1GE Datasheet - Page 29

• Manufacturer Part Number: SRI4K-A3T/1GE
• Manufacturer: STMicroelectronics

Specifications of SRI4K-A3T/1GE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

GET_UID() Command
Command Code = 0Bh
On receiving the GET_UID command, the SRI4K
returns its 8 UID Bytes. UID Bytes are transmitted
with the Least Significant Byte first, and each byte
is transmitted with the least significant bit first.
Figure 49. GET_UID Request Format
Request parameter:
–
Figure 50. GET_UID Response Format
Response parameters:
Figure 51. GET_UID Frame Exchange Between Reader and SRI4K
Power-On State
After Power-On, the SRI4K is in the following
state:
No parameter
SOF
SRI4K
Reader
UID 0
8 bits
S
O
F
UID 1
8 bIts
0Bh
CRC L CRC H
UID 2
8 bIts
E
O
F
SOF
UID 3
8 bIts
<-t 0 -> <-t 1 ->
GET_UID
0Bh
UID 4
8 bIts
S
O
F
UID
0
UID 5
8 bIts
UID
8 bits
CRC L
1
The SRI4K must have received a SELECT() com-
mand and be switched to SELECTED state before
any GET_UID() command can be accepted. All
GET_UID() commands sent to the SRI4K before a
SELECT() command is issued, are ignored.
–
–
–
–
–
–
–
UID
UID 0: Less significant UID Byte
UID 1 to UID 6: UID Bytes
UID 7: Most significant UID Byte.
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().
2
UID 6
8 bIts
UID
3
UID
CRC H
8 bits
4
UID 7
8 bIts
UID
5
UID
CRC L
6
EOF
8 bits
UID
7
CRC L CRC H
CRC H
8 bIts
AI07693
EOF
E
O
F
SRI4K
AI10892
AI07694
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