Datasheet

PN532_C1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.6 — 28 November 2017
115436 106 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
8.6.4 ISO/IEC 18092, ECMA 340 NFCIP-1 operating mode
A NFCIP-1 communication takes place between 2 devices:
• 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.
The NFCIP-1 communication differentiates between Active and Passive communication
modes.
• 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.
In order to fully support the NFCIP-1 standard the PN532 supports the Active and Passive
Communications mode at the transfer speeds 106 kbit/s, 212 kbit/s and 424 kbit/s as
defined in the NFCIP-1 standard
With appropriate firmware, the PN532 can handle the NFCIP-1 protocol, for all
communication modes and data rates, for both Initiator and Target.
Fig 31. NFCIP-1 mode
Initiator: Active
PN532
HOST
Battery
PN532
HOST
Battery
Target: Passive or Active