HTMS8201FTK datasheet(20/57 Pages) NXP

номер детали	HTMS8201FTK

подробное описание детали	HITAG transponder IC

PDF	57 Pages

Scroll/Zoom	100%

производитель	NXP [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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20 / 57 page

HTMS1x01_8x01

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Product data sheet

COMPANY PUBLIC

Rev. 3.3 — 17 October 2014

152933

20 of 57

NXP Semiconductors

HTMS1x01; HTMS8x01

HITAG µ transponder IC

11.3.3 RWD - Start of frame pattern

The RWD requests in the data exchange mode always a start with a SOF pattern for ease

of synchronization. The SOF pattern consists of an encoded data bit ’0’ and a ’code

violation’.

The HITAG µ advanced/advanced+ is ready to receive a SOF from the RWD within

1.2 ms after having sent a response to the RWD.

The HITAG µ advanced/advanced+ is ready to receive a SOF or switch command from

the RWD within 2.33 ms after the RWD has established the powering field.

11.3.4 RWD - End of frame pattern

For slot switching during a multi-slot anticollision sequence, the RWD request is an EOF

pattern. The EOF pattern is represented by a RWD ’Stop condition’.

Fig 8.

Start of frame pattern

001aaj828

carrier on

TFd0

TFpSOF

TF1

carrier off

TF1

TFcv

data "0"

"code violation"

Fig 9.

End of frame pattern

001aaj829

carrier on

TFpEOF

TF1

carrier off

TFsc

"stop condition''

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