NXP Semiconductors PN544 C2 - PN544 Software Architecture; System Overview

NXP Semiconductors
UM191812
PN544 C2 User Manual
191812 All information provided in this document is subject to legal disclaimers. © 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
SPI or I2C or HSU
Secure chip Interface
NFC – WI
UICC interface
SWP
RF Interface
13,56MHz
PN544
ETSI
LLC
NXP
HCI
ETSI
HCI
PN544
HCI
RF Protocols
Wired interface to
connect Secure Element
NXP
LLC
RF Frontend
Configuration
(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
1
[5]
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