HTMS1301FUGSLASHAM datasheet(17/44 Pages) NXP

17 / 44 page

184430

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Product data sheet

PUBLIC

Rev. 3.0 — 18 March 2010

184430

17 of 44

NXP Semiconductors

HITAG µ

ISO 18000 transponder IC

12. State diagram

12.1 General description of states

RF Off

The powering magnetic field is switched off or the HITAG µ ISO 18000 transponder IC is

out of the field.

READY

The HITAG µ ISO 18000 transponder IC enters this state when it is activated by the RWD.

SELECTED

The HITAG µ ISO 18000 transponder IC enters the Selected state after receiving the

SELECT command with a matching UII. In the Selected state the respective commands

with SEL=1 are valid only for selected transponder.

Only one HITAG µ transponder IC should be in the selected state at one time. If one

transponder is selected and a second transponder receives the SELECT Command, the

first transponder will automatically change to Quiet state.

QUIET

The HITAG µ ISO 18000 transponder IC enters this state after receiving a STAY QUIET

command or when he was in selected state and receives a SELECT command addressed

to another transponder.

In this state, the HITAG µ transponder IC reacts to any request commandos where the

ADR flag is set.

Remark:

In case of an invalid command the transponder will remain in his actual state.

HTMS1301FUG/AM 数据表(PDF) 17 Page - NXP Semiconductors