PN512 NXP Semiconductors, PN512 Datasheet - Page 15

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

NXP Semiconductors
124533
Product short data sheet
Fig 10. Passive Communication mode
8.2.2 Passive Communication mode
Passive Communication mode means that the target answers to an initiator command in a
load modulation scheme. The initiator is active meaning generating the RF field.
Table 10.
The contactless UART of PN512 and a dedicated host controller are required to handle
the NFCIP-1 protocol.
Note: Transfer Speeds above 424 kbit/s are not defined in the NFCIP-1 standard. The
PN512 supports these transfer speeds only with dedicated external circuits.
Communication
direction
Initiator → Target According to
Target → Initiator According to
Communication Overview for Passive Communication mode
106 kbit/s
ISO 14443A
100% ASK,
Modified
Miller Coded
ISO 14443A
subcarrier load
modulation,
Manchester Coded
Rev. 3.3 — 13 June 2007
212 kbit/s
According to FeliCa, 8-30%
ASK Manchester Coded
According to FeliCa, >12%
ASK Manchester Coded
424 kbit/s
848 kbit/s
digital capability to handle
this communication
Transmission Module
© NXP B.V. 2007. All rights reserved.
PN512
1.69 Mbit/s,
3.39 Mbit/s
15 of 23