R
EM4223
Command : Next_Slot
Initial State
Ready
Quiet
Round_Active
Criteria
None
None
Tag has answered in previous slot, AND
st
Signature matches AND 1 low pulse of
Next_Slot command was received in the
acknowledgement time window.
Tag is in
ISO Mode
and has NOT
answered in previous slot, OR Signature
st
does not match OR 1 low pulse of
Next_Slot command was not received in
the acknowledgement time window.
Tag is in
FST Mode
and has NOT
answered in previous slot, OR Signature
st
does not match OR 1 low pulse of
Next_Slot command was not received in
the acknowledgement time window.
ISO Mode
FST Mode
None
None
None
Action
New State
Ready
Quiet
Quiet
The tag shall increment its slot counter
and send its response if slot counter
matches the chosen slot.
The tag will automatically increment is
Current Slot Counter at internally
determined times and send its response
if the its Current Slot Counter matches its
Selected Slot Register.
The tag shall increment its slot counter
and send its response if slot counter
matches the chosen slot.
The tag resumes the FST Arbitration
process and will automatically increment
is Current Slot Counter at internally
determined times and send its response
if the its Current Slot Counter matches its
Selected Slot Register.
Round_Active
Round_Active
Round_Standby
Round_active
Round_active
Table 12 - Tag state transitions for Next_Slot
Command : Close_slot
Initial State
Ready
Quiet
Round_Active
Criteria
None
None
ISO Mode
FST Mode
None
None
The tag shall increment its slot counter
and send its response if slot counter
matches the chosen slot.
The tag will automatically increment is
Current Slot Counter at internally
determined times and send its response
if the its Current Slot Counter matches its
Selected Slot Register.
The tag shall increment its slot counter
and send its response if slot counter
matches the chosen slot.
The tag resumes the FST Arbitration
process and will automatically increment
is Current Slot Counter at internally
determined times and send its response
if the its Current Slot Counter matches its
Selected Slot Register.
Action
New State
Ready
Quiet
Round_Active
Round_Active
Round_Standby
ISO Mode
FST Mode
Round_active
Round_active
Table 13 - Tag state transitions for Close_Slot
Command : Reset_To_Ready
Initial State
Ready
Quiet
Round_Active
Round_Standby
Criteria
None
None
None
None
None
None
None
None
Action
New State
Ready
Ready
Ready
Ready
Table 14 - Tag state transitions for Reset_To_Ready
Copyright
©
2005, EM Microelectronic-Marin SA
13
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
