sri512 STMicroelectronics, sri512 Datasheet - Page 34
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sri512
Manufacturer Part Number
sri512
Description
13.56-mhz Short-range Contactless Memory Chip With 512-bit Eeprom And Anti-collision Functions
Manufacturer
STMicroelectronics
Datasheet
1.SRI512.pdf
(50 pages)
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RESET_TO_INVENTORY() command
Command Code = 0Ch
On receiving the RESET_TO_INVENTORY() command, all SRI512 devices in SELECTED
state revert to INVENTORY state. The concerned SRI512 devices are thus resubmitted to
the anticollision sequence. This command is useful when two SRI512 devices with the same
8-bit Chip_ID happen to be in SELECTED state at the same time. Forcing them to go
through the anticollision sequence again allows the reader to generates new PCALL16()
commands and so, to set new random Chip_IDs.
The RESET_TO_INVENTORY() command does not generate a response.
All SRI512 devices that are not in SELECTED state ignore the RESET_TO_INVENTORY()
command.
Figure 38. RESET_TO_INVENTORY request format
Request parameter:
Figure 39. RESET_TO_INVENTORY response format
Figure 40. RESET_TO_INVENTORY frame exchange between Reader and SRI512
No parameter
Reader
SRI512
SOF
SOF
RESET_TO_INVENTORY
0Ch
CRC L
0Ch
CRC H EOF
No Response
8 bits
CRC L
CRC H
8 bits
No Response
EOF
AI07682
AI10947
SRI512
AI07680