PN5120A0HN/C1 NXP Semiconductors, PN5120A0HN/C1 Datasheet - Page 15

• Manufacturer Part Number: PN5120A0HN/C1
• Description: Transmission Module 40-Pin HVQFN EP T/R
• Manufacturer: NXP Semiconductors

Specifications of PN5120A0HN/C1

• Package: 40HVQFN EP
• Operating Temperature: -30 to 85 °C

NXP Semiconductors
PN512
Product data sheet
COMPANY PUBLIC
8.4.2 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
Fig 11. Passive communication mode
host
generate RF field
NFC INITIATOR
Communication overview for Passive communication mode
powered to
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106 kbit/s
ISO/IEC 14443A
100 % ASK,
Modified
Miller Coded
ISO/IEC 14443A
subcarrier load
modulation,
Manchester Coded
Rev. 3.6 — 10 March 2011
1. initiator starts communication
at selected transfer speed
111336
212 kbit/s
According to FeliCa, 8-30
% ASK Manchester Coded
According to FeliCa, > 12 %
ASK Manchester Coded
2. targets answers using
load modulated data
at the same transfer speed
424 kbit/s
848 kbit/s
digital capability to handle
this communication
Transmission module
digital processing
NFC TARGET
© NXP B.V. 2011. All rights reserved.
powered for
PN512
1.69 Mbit/s,
3.39 Mbit/s
001aan217
15 of 125
host