HTMS8001FTB/AF,115 NXP Semiconductors, HTMS8001FTB/AF,115 Datasheet - Page 29

• Manufacturer Part Number: HTMS8001FTB/AF,115
• Description: RFID HTAG ADVANCED SOT1122
• Manufacturer: NXP Semiconductors
• Series: HITAG® µr

Specifications of HTMS8001FTB/AF,115

• Rf Type: Read / Write
• Frequency: 100kHz ~ 150kHz
• Features: ISO/IEC 11784/11785
• Package / Case: *
• Operating Temperature Range: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935290071115

NXP Semiconductors
152931
Product data sheet
PUBLIC
12.3.2 Anticollision with 16 slots
The transponder IC will receive several inventory commands with NOS = '0' defining an
amount of 16 slots. Within the request there is the mask specified by length and value
(sent LSB first).
In case of mask length = '0' the four least significant bits of transponder ICs UID become
the starting value of transponder IC's slot counter.
In case of mask length ≠ '0' the received fractional mask is compared to transponder IC's
UID. If it matches the starting value for transponder IC's slot number will be calculated.
Starting at last significant bit of the sent mask the next four less significant bits of UID are
used for this value. At the same time transponder IC's slot counter is reset to '0'.
Now the RWD begins its anticollision algorithm. Every time the transponder IC receives an
EOF it increments slot-counter. Now if mask value and slot-counter value are matching
the transponder IC responses with the remaining UID without mask value but with slot
number
In case of collision within one slot the RWD changes the mask value and starts again
running its algorithm.
Rev. 3.1 — 21 January 2010
152931
© NXP B.V. 2010. All rights reserved.
HITAG µ
Transponder IC
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