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NXP Semiconductors
UM191812
PN544 C2 User Manual
191812
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© NXP B.V. 2010. All rights reserved.
User Manual
Rev. 1.2 — 2010-06-16
7 of 172
5. PN544 Software Architecture
5.1 System Overview
Host Interface
SP
I or I2C
or
H
SU
Secure chip Interface
NFC – WI
UICC interface
SWP
RF I
nterface
13,56
MHz
PN
544
ETSI
LLC
NXP
HCI
ETSI
HCI
PN544
HCI
RF Protocols
Wired interface to
connect Secure Element
NXP
LLC
RF Fronten
d
Co
nfi
guration
(1) A high level view on the PN544 interface / software structure
Fig 1. System Overview
The PN544 offered physical interfaces and their functionalities are
•
Host Interfaces
consisting of I
2
C, SPI and HSU as physical interfaces
•
RF Interface
This interface features 13,56MHz based protocols such as NFCIP-1 [4], MIFARE
and ISO14443 [6]
•
SWP Interface
This interface is according to the ETSI [2] specification
•
NFC-WI
This interface is according to ECMA 373 [3]
1 Reader modes as well as card emulation modes