NTP53X2 datasheet(61/133 Pages) NXP

61 / 133 page

NXP Semiconductors

NTP53x2

NTAG 5 link - NFC Forum-compliant I2C bridge

NTP53x2

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Product data sheet

Rev. 3.3 — 3 July 2020

COMPANY PUBLIC

544533

61 / 133

POWER-OFF

out of field

in field

READY

QUIET

SELECTED

SECURE

aaa-035481

Figure 6. State Machine and State Transitions

8.2.2.1 POWER-OFF state

8.2.2.1.1 State transitions from and to POWER-OFF state

If NFC field is switched off or below, HMIN NTAG 5 link goes to POWER-OFF state.

POWER-OFF state will be left to READY state no later than 1 ms after NTAG 5 link is

NOTE: When loading default data to mirrored SRAM, start-up time, dependent on the

pre-loaded bytes, might be greater than 1 ms.

8.2.2.2 READY state

8.2.2.2.1 Transitions between READY and SELECTED state

Transition from READY to SELECTED state is done when

• receiving a SELECT command with a matching UID

8.2.2.2.2 Transitions between READY and QUIET state

Transition from READY to QUIET state is done when

• receiving a STAY QUIET command with a matching UID

• receiving a (FAST) INVENTORY READ command (extended mode) with Quiet_Flag

set

8.2.2.2.3 Transitions between READY and SELECTED SECURE state

Transition from READY to SELECTED SECURE state is done when

• mutual authentication with AUTHENTICATE command with a matching UID was

successful

NTP53X2 Datasheet(PDF) 61 Page - NXP Semiconductors