LRI512 Просмотр технического описания (PDF) - STMicroelectronics
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LRI512
STMicroelectronics
LRI512 Datasheet PDF : 54 Pages
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LRI512
STAY QUIET
Command Code = 0x02
When receiving the Stay Quiet command, the
LRI512 enters the Quiet State, and does not send
back a Response. There is no response to the
Stay Quiet Command.
When in the Quiet State:
– the LRI512 does not process any Request if
Inventory_flag is set,
– the LRI512 processes any addressed Re-
quest
The LRI512 exits the Quiet State when:
– reset (power off)
– receiving a Select request. It then goes to the
Selected state
– receiving a Reset to Ready request. It then
goes to the Ready state.
The Stay Quiet Command (Table 23) shall always
be executed in Addressed Mode (Select_Flag is
set to 0 and Address_Flag is set to 1).
Table 23. Stay Quiet Request Format
Request
SOF
Request
Flags
Stay Quiet
8 bits
0x02
UID
64 bits
Figure 33. STAY QUIET Frame Exchange between VCD and LRI512
CRC16
16 bits
Request
EOF
VCD
SOF
Stay Quiet
Request
EOF
AI06842
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