SRI4K-SBN181GE STMICROELECTRONICS [STMicroelectronics], SRI4K-SBN181GE Datasheet - Page 35

• Manufacturer Part Number: SRI4K-SBN181GE
• Description: 13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

SRI4K
8.9
Figure 46. Write_block frame exchange between reader and SRI4K
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.
The SRI4K must have received a Select() command 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.
Figure 47. Get_UID request format
Request parameter:
●
Figure 48. Get_UID response format
Response parameters:
●
●
●
Reader
SRI4K
SOF
No parameter
UID 0: Less significant UID byte
UID 1 to UID 6: UID bytes
UID 7: Most significant UID byte.
UID 0
8 bits
SOF
09h
UID 1
8 bIts
Address
SOF
UID 2
8 bIts
Data 1
Get_UID
0Bh
UID 3
8 bIts
Data 2 Data 3 Data 4
UID 4
8 bIts
8 bits
CRC L
UID 5
8 bIts
CRC L CRC H EOF
UID 6
8 bIts
CRC H
8 bits
UID 7
8 bIts
EOF
CRC L
8 bits
SRI4K commands
No response
CRC H
8 bIts
AI07693b
AI10891b
AI07694
EOF
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