Datasheet

PN512 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 5.2 — 16 June 2016
111352 17 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
7.4 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 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 PN512 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 10. NFCIP-1 mode
001aan215
BATTERY
initiator: active target:
passive or active
MICROCONTROLLER
PN512
BATTERY
MICROCONTROLLER
PN512