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 214 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
15. Abbreviations
Table 321. Abbreviations
Acronym Description
ASK Amplitude Shift keying
BPSK Bit Phase Shift Keying
CIU Contactless Interface Unit
CRC Cyclic Redundancy Check
ECMA European Computer Manufacturers Association organization
GPIO General Purpose Input Output
GPIRQ General Purpose Interrupt ReQuest
HPD Hard Power Down (see Section 8.5.3 on page 91
)
HSU High Speed UART
Initiator Generates RF field at 13.56 MHz and starts the NFCIP-1 communication.
LDO Low Drop-Out regulator
Load modulation Index The load modulation index is defined as the card’s voltage ratio (Vmax -
Vmin) / (Vmax + Vmin) measured at the card’s coil.
MIF Multi InterFace block
Modulation Index The modulation index is defined as the voltage ratio (Vmax - Vmin) /
(Vmax + Vmin).
MSL Moisture Sensitivity Level
NFCIP NFC Interface and Protocol
NFC-WI NFC Wired Interface to connect NFC front end to a SIC
PCD Proximity Coupling Device. Definition for a Card Reader/ Writer
according to the ISO/IEC 14443 Specification
PCR Power Clock Reset controller
PICC Proximity Cards. Definition for a contactless Smart Card according to the
ISO/IEC 14443 specification
SIC Secure Integrated Circuit (can be a Smart Card IC, a Secure Access
Module (SAM),...)
SPI Serial Parallel Interface
SPD Soft Power Down mode (see Section 8.5.4 on page 92
)
Target Responds to initiator command either using load modulation scheme (RF
field generated by Initiator) or using modulation of self-generated RF field
(no RF field generated by initiator during target answer).
UART Universal Asynchronous Receive Transmit