R
EM4223
Begin-
Round
Always = 0
OB
SUID
1 bit
Round
size
3 bits
5 bits
Mask
length
8 bits
Mask
value
0-136
bits
16 bits
Tags that match the MASK
value of MASK length will
move to the ROUND_ACTIVE
state from the
ROUND_STANDBY or
READY states or will remain
in the ROUND_ACTIVE state
if already there. Tags that do
not match the Mask will move
to the READY from either
ROUND_ACTIVE or
ROUND_STANDBY states.
SUID = 0 tag responds with
the 128 bits of user data.
SUID = 1 tag responds with
SUID, where the DSFID field
is replaced by AFI field. Also
moves Transponders already
active in FST mode to ISO
mode.
Wakes tag up in the Fast
Supertag™ mode. Also
moves tags already active in
ISO mode to FST mode. SUID
= 0 tag responds with the 128
bits of user data SUID = 1 tag
responds with SUID.
Implied command in FST
mode. When tag receives an
SOF it moves to the
ROUND_STANDBY state.
The tag returns to the active
state on receipt of a next-slot
or init-round or new-round
command, or when a period of
2.5 X 176 tag bit periods has
elapsed since the last Mute
command (176 bits =
maximum message length).
Table 5- Supported Commands
Mandatory ISO commands op-codes are marked with an * and command titles are in bold type face.
Wake-Up-
FST
Always = 0
39
SUID
1 Bit
Round
size
3 bits
5 bits
Mute
Low
Pulse
Copyright
©
2005, EM Microelectronic-Marin SA
8
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
