PN512 NXP Semiconductors, PN512 Datasheet - Page 16

• Manufacturer Part Number: PN512
• Description: Transmission Module
• Manufacturer: NXP Semiconductors

NXP Semiconductors
124533
Product short data sheet
8.2.3 NFCIP-1 framing and coding
8.2.4 NFCIP-1 Protocol Support
8.3 Card Operation mode
The NFCIP-1 framing and coding in Active and Passive Communication mode is defined
in the NFCIP-1 standard.
Table 11.
The NFCIP-1 protocol is not completely described in this document. For detailed
explanation of the protocol refer to the NFCIP-1 standard. However the datalink layer is
according to the following policy:
In order not to disturb current infrastructure based on 13.56 MHz general rules to start
NFCIP-1 communication are defined in the following way.
The PN512 can be addressed like a FeliCa or ISO 14443A/Mifare card. This means that
the PN512 can generate an answer in a load modulation scheme according to the
ISO 14443A/Mifare or FeliCa interface description.
Note: The PN512 does not support a complete card protocol. This has to be handled by a
dedicated card SAM or a host controller. The card-SAM is optional.
Transfer speed
106 kbit/s
212 kbit/s
424 kbit/s
1. Per default NFCIP-1 device is in Target mode meaning its RF field is switched off.
2. The RF level detector is active.
3. Only if application requires the NFCIP-1 device shall switch to Initiator mode.
4. Initiator shall only switch on its RF field if no external RF field is detected by RF Level
5. The initiator performs initialization according to the selected mode.
Fig 11. Card Operation mode
•
•
Reader/ Writer for FeliCa
Speed shall not be changed while continuum data exchange in a transaction.
Transaction includes initialization and anticollision methods and data exchange (in
continuous way, meaning no interruption by another transaction).
detector during a time of TIDT.
Generates RF
or MIFARE
Framing and Coding Overview
field
Rev. 3.3 — 13 June 2007
Framing and Coding
According to the ISO 14443A/Mifare scheme
According to the FeliCa scheme
According to the FeliCa scheme
PN512
Loadmodulation
Transmission Module
Answers in
scheme
© NXP B.V. 2007. All rights reserved.
Sam (opt.)
PN512
µC and
Battery
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