SRT512-W4/1GE STMicroelectronics, SRT512-W4/1GE Datasheet - Page 28

• Manufacturer Part Number: SRT512-W4/1GE
• Manufacturer: STMicroelectronics

Specifications of SRT512-W4/1GE

• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Supplier Unconfirmed

SRT512 commands
8.1
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Initiate() command
Command code = 06h - 00h
Initiate() is used to initiate the anticollision sequence of the SRT512. On receiving the
Initiate() command, all SRT512 devices in Ready state switch to Inventory state, set a new
8-bit Chip_ID random value, and return their Chip_ID value. This command is useful when
only one SRT512 in Ready state is present in the reader field range. It speeds up the
Chip_ID search process. The Chip_slot_number is not used during Initiate() command
access.
Figure 22. Initiate request format
Request parameter:
●
Figure 23. Initiate response format
Response parameter:
●
Figure 24. Initiate frame exchange between reader and SRT512
Reader
SRT512
No parameter
Chip_ID of the SRT512
SOF
SOF
SOF
06h
06h
00h
Initiate
Chip_ID
8 bits
CRC L
Doc ID 13277 Rev 4
00h
CRC H EOF
8 bits
CRC L
<-t 0 -> <-t 1 ->
8 bits
CRC L
SOF Chip_ID
CRC H
8 bits
CRC H
8 bits
CRC L CRC H EOF
EOF
EOF
AI07671
SRT512
AI07670b
AI13507b