HTMS8201FTK datasheet(15/57 Pages) NXP

15 / 57 page

HTMS1x01_8x01

All information provided in this document is subject to legal disclaimers.

Product data sheet

COMPANY PUBLIC

Rev. 3.3 — 17 October 2014

152933

15 of 57

NXP Semiconductors

HTMS1x01; HTMS8x01

HITAG µ transponder IC

The steps necessary to transfer the HITAG

 transponder IC into the data exchange mode

are shown in Figure 3. The downlink communication takes place in period C and D. The

example in Figure 3 shows two data blocks (#1 and #2) being selected by the RWD, which

then are transmitted by the HITAG µ transponder IC.

Fig 3.

RF interface for HITAG µ

Cycle A:

The

RWD reads the ISO 11785 frame.

Cycle B:

The

RWD switches off the interrogation field for at least 5 ms in order to reset the

HITAG µ transponder IC.

Cycle C:

The

RWD sends either the SOF at the start of a valid request or the SWITCH

command to the

HITAG µ transponder IC in order to put it into the data exchange

mode. Any of these has to be issued within the switch window after reset - as

defined in Section 11.2 “Mode switching protocol”

Cycle D:

Read/Write (for

HITAG µ transponder ICs) or Inventory (HITAG µ

advanced/advanced+ transponder ICs) operation in the data exchange mode.

Cycle E:

After all operations are finished or the

HITAG µ transponder IC left the antenna

field, the

RWD switches off the field for at least 5 ms in order to poll for new

incoming HITAG µ or HITAG µ advanced/advanced+.

001aaj824

5 .. 20 ms

time

min 5 ms

ISO11785

HITAG

reader

field

HITAG

response

ISO11785

HTMS8201FTK датащи(PDF) 15 Page - NXP Semiconductors

HTMS8201FTK датащи(HTML) 15 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

датащи скачать

ссылки URL