PN511 datasheet(13/22 Pages) NXP

13 / 22 page

082733

Product short data sheet

Rev. 3.3 — 13 June 2007

13 of 22

NXP Semiconductors

PN511

Transmission Module

8.2 NFCIP-1 mode

The NFCIP-1 communication differentiates between an active and a Passive

Communication mode.

• Active Communication mode means both the initiator and the target are using their

own RF field to transmit data.

• Passive Communication mode means that the target answers to an initiator command

in a load modulation scheme. The initiator is active in terms of generating the RF field.

• Initiator: generates RF field at 13.56 MHz and starts the NFCIP-1 communication

• Target: responds to initiator command either in a load modulation scheme in Passive

Communication mode or using a self generated and self modulated RF field for Active

Communication mode.

In order to fully support the NFCIP-1 standard the PN511 supports the Active and Passive

Communication mode at the transfer speeds 106 kbit/s, 212 kbit/s and 424 kbit/s as

defined in the NFCIP-1 standard.

Fig 8.

NFCIP-1 mode

PN511

Battery

µC

Battery

µC

Initiator:Active

Target:

Passive or

Active

PN511

PN511 Datasheet(PDF) 13 Page - NXP Semiconductors