PN5120A0HN/C1 NXP Semiconductors, PN5120A0HN/C1 Datasheet - Page 12
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PN5120A0HN/C1
Manufacturer Part Number
PN5120A0HN/C1
Description
Transmission Module 40-Pin HVQFN EP T/R
Manufacturer
NXP Semiconductors
Datasheet
1.PN5120A0HN1C2118.pdf
(125 pages)
Specifications of PN5120A0HN/C1
Package
40HVQFN EP
Operating Temperature
-30 to 85 °C
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NXP Semiconductors
PN512
Product data sheet
COMPANY PUBLIC
8.3.1 FeliCa framing and coding
8.3 FeliCa reader/writer functionality
The FeliCa mode is the general reader/writer to card communication scheme according to
the FeliCa specification. The following diagram describes the communication on a
physical level, the communication overview describes the physical parameters.
Table 6.
The contactless UART of PN512 and a dedicated external host controller are required to
handle the complete FeliCa protocol.
Table 7.
To enable the FeliCa communication a 6 byte preamble (00h, 00h, 00h, 00h, 00h, 00h)
and 2 bytes Sync bytes (B2h, 4Dh) are sent to synchronize the receiver.
The following Len byte indicates the length of the sent data bytes plus the LEN byte itself.
The CRC calculation is done according to the FeliCa definitions with the MSB first.
To transmit data on the RF interface, the host controller has to send the Len- and data-
bytes to the PN512's FIFO-buffer. The preamble and the sync bytes are generated by the
PN512 automatically and must not be written to the FIFO by the host controller. The
PN512 performs internally the CRC calculation and adds the result to the data frame.
Example for FeliCa CRC Calculation:
Table 8.
Communication
direction
PN512 → card
card → PN512
Preamble
00h
Preamble
00h
Fig 8. FeliCa reader/writer communication diagram
00h
00h
Felica READER
Communication overview for FeliCa reader/writer
FeliCa framing and coding
Start value for the CRC Polynomial: (00h), (00h)
00h
PN512
(PCD)
00h
All information provided in this document is subject to legal disclaimers.
Transfer speed
Modulation on reader side
bit coding
Bitlength
Loadmodulation on card side
bit coding
00h
00h
Rev. 3.6 — 10 March 2011
00h
1. PCD to PICC, 8-30 % ASK
Manchester coded, baudrate 212 to 424 kbaud
00h
111336
2. PICC to PCD, > 12 % ASK loadmodulation
Manchester coded, baudrate 212 to 424 kbaud
00h
00h
Sync
B2h
Sync
B2h
4Dh
FeliCa
212 kbit/s
8-30 % ASK
Manchester Coding
(64/13.56) μs
> 12 % ASK
Manchester coding
Len
4Dh
n-Data
Len
03h
2 Data Bytes CRC
ABh
Transmission module
FeliCa Higher
transfer speeds
424 kbit/s
8-30 % ASK
Manchester Coding
(32/13.56) μs
> 12 % ASK
Manchester coding
FeliCa CARD
CDh
© NXP B.V. 2011. All rights reserved.
(PICC)
PN512
001aan214
90h
CRC
12 of 125
35h
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