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 109 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
Each signal can be switched to pin AUX1 or AUX2 by setting SelAux1 or SelAux2 in the
register AnalogTestReg.
Note: The DAC has a current output, it is recommended to use a 1 k pull-down
resistance at pins AUX1/AUX2.
19.4 PRBS
Enables the PRBS9 or PRBS15 sequence according to ITU-TO150. To start the
transmission of the defined datastream the command send has to be activated. The
preamble/Sync byte/start bit/parity bit are generated automatically depending on the
selected mode.
Note: All relevant register to transmit data have to be configured before entering PRBS
mode according ITU-TO150.
20. Errata sheet
This data sheet is describing the functionality for version 2.0 and the industrial version.
This chapter lists all differences from version 1.0 to version 2.0:
The value of the version in Section 8.2.4.8
is set to80h.
The behaviour ‘RFU’ for the register is undefined.
The answer to the Selftest (see Section 19.1
) for version 1.0 (VersionReg equal to 80h):
00h, AAh, E3h, 29h, 0Ch, 10h, 29zhh, 6Bh,
76h, 8Dh, AFh, 4Bh, A2h, DAh, 76h, 99h
C7h, 5Eh, 24h, 69h, D2h, BAh, FAh, BCh
3Eh, DAh, 96h, B5h, F5h, 94h, B0h, 3Ah
4Eh, C3h, 9Dh, 94h, 76h, 4Ch, EAh, 5Eh
38h, 10h, 8Fh, 2Dh, 21h, 4Bh, 52h, BFh
4Eh, C3h, 9Dh, 94h, 76h, 4Ch, EAh, 5Eh
38h, 10h, 8Fh, 2Dh, 21h, 4Bh, 52h, BFh
FBh, F4h, 19h, 94h, 82h, 5Ah, 72h, 9Dh
BAh, 0Dh, 1Fh, 17h, 56h, 22h, B9h, 08h
Only the default setting for the prescaler (see Section 14 “
Timer unit” on page 96): t =
((TPreScaler*2+1)*TReload+1)/13,56 MHz is supported. As such only the formula f
Timer
=
13,56 MHz/(2*PreScaler+1) is applicable for the TPrescalerHigh in Table 100 “
Description
of TModeReg bits” on page 57 and TPrescalerLo in Table 101 “TPrescalerReg register
(address 2Bh); reset value: 00h, 00000000b” on page 58. As there is no option for the
prescaler available, also the TPrescalEven is not available Section 8.2.2.10 on page 45
.
This bit is set to ‘RFU’.
1101 RxActive
1110 Subcarrier detected
1111 TstBusBit
Table 165. Testsignals description
SelAux Description for Aux1 / Aux2