Datasheet

PN512 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 5.2 — 16 June 2016
111352 43 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
3 to 0 SigOutSel Selects the input for the SIGOUT Pin.
Value Description
0000 Tristate
0001 Low
0010 High
0011 TestBus signal as defined by bit TestBusBitSel in register
TestSel1Reg.
0100 Modulation signal (envelope) from the internal coder
0101 Serial data stream to be transmitted
0110 Output signal of the receiver circuit (card modulation signal
regenerated and delayed). This signal is used as data output
signal for SAM interface connection using 3 lines.
Note: To have a valid signal the PN512 has to be set to the
receiving mode by either the Transceive or Receive
command. The bit RxMultiple can be used to keep the PN512
in receiving mode.
Note: Do not use this setting in MIFARE mode. Manchester
coding as data collisions will not be transmitted on the
SIGOUT line.
0111 Serial data stream received.
Note: Do not use this setting in MIFARE mode. Miller coding
parameters as the bit length can vary.
1000-1011 FeliCa Sam modulation
1000 RX*
1001 TX
1010 Demodulator comparator output
1011 RFU
Note: * To have a valid signal the PN512 has to be set to the
receiving mode by either the Transceive or Receive
command. The bit RxMultiple can be used to keep the PN512
in receiving mode.
1100-1111 MIFARE Sam modulation
1100 RX* with RF carrier
1101 TX with RF carrier
1110 RX with RF carrier un-filtered
1111 RX envelope un-filtered
Note: *To have a valid signal the PN512 has to be set to the
receiving mode by either the Transceive or Receive
command. The bit RxMultiple can be used to keep the PN512
in receiving mode.
Table 60. Description of TxSelReg bits
…continued
Bit Symbol Description