LRI512 데이터 시트보기 (PDF) - STMicroelectronics
부품명
상세내역
제조사
LRI512
STMicroelectronics
LRI512 Datasheet PDF : 54 Pages
| |||
LRI512
LRI512 STATES
A LRI512 can be in one of four states:
– Power-off
– Ready
– Quiet
– Selected
Transitions between these states are specified in
Figure 30 and Table 9.
Power-off State
The LRI512 is in the Power-off state when it does
not receive enough energy from the VCD.
Ready State
The LRI512 is in the Ready state when it receives
enough energy from the VCD. It shall answer any
Request where the Select_Flag is not set.
Quiet State
When in the Quiet State, the LRI512 answers any
Request other than an Inventory Request with the
Address_Flag set.
Selected State
In the Selected State, the LRI512 answers to any
Request in all modes:
– Request in Select mode with the Select flag set
– Request in Addressed mode if the UID match.
– Request in Non-Addressed mode as it is gener-
al Request.
Table 9. LRI512 Response, Depending on the States of the Request Flags
Flags
Address_Flag
1
0
Addressed Non Addressed
Select_Flag
1
Selected
0
Non Selected
LRI512 in Ready or Selected state (Devices
in Quiet state do not answer)
X
X
LRI512 in Selected state
X
X
LRI512 in Ready, Quiet or Selected state (the
device which match the UID)
X
X
Error (03h)
X
X
17/54
Share Link: