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| HTMS8201FTK Datasheet, PDF (25/57 Pages) NXP Semiconductors – HITAG transponder IC | |||
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NXP Semiconductors
HTMS1x01; HTMS8x01
HITAG µ transponder IC
12.3.2 RWD receives no HITAG µ transponder IC response
During an inventory process, when the RWD has received no HITAG µ
advanced/advanced+ transponder IC response, it needs to wait TFp3 before sending a
subsequent EOF to switch to the next slot, if a 16 slot anticollision request is processed, or
sending a subsequent request (which could be again an inventory request).
TFp3 starts from the time the RWD has generated the falling edge of the last sent EOF.
The minimum value of TFp3 is TFp3min = TFp1max + TFpSOF.
TFpSOF is the time duration for a HITAG µ advanced/advanced+ transponder to transmit
an SOF to the reader.
reader
carrier on
carrier off
HITAG μ
load off
load on
request
TFp1MAX
TFpSOF
TFp3
no response
request (or EOF)
001aaj834
Fig 14. Protocol timing diagram without HITAG µ transponder IC response
Table 13.
Symbol
TFpSOF
TFp1
TFp2
TFp3
Overview timing parameters [1]
Min
3 ï´ TFd
204 ï´ TC
150 ï´ TC
TFp1max + TFpSOF
[1] TC...Carrier period time (ï±ï¯ï±ï³ï´ï®ï²ï kHz = 7.45 ïs nominal)
Max
3 ï´ TFd
213 ï´ TC
-
-
HTMS1x01_8x01
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 â 17 October 2014
152933
© NXP Semiconductors N.V. 2014. All rights reserved.
25 of 57
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