Datasheet

Short form data sheet Rev. 1.2 — 31 March 2011 13 of 25

Philips Semiconductors

PN532/C1

NFC controller

9.1.4 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 @ 13.56 MHz and starts the NFCIP

• Target: responds to initiator command either in a load modulation scheme for 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 PN532 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 6. NFCIP-1 Mode.

Initiator: Active

PN532

HOST

Battery

PN532

HOST

Battery

target: Passive or Active