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CLRC663 Datasheet(PDF) 86 Page - NXP Semiconductors

Part # CLRC663
Description  High performance multi-protocol NFC frontend CLRC663 and CLRC663 plus
PDF  177 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

CLRC663 Datasheet(HTML) 86 Page - NXP Semiconductors

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NXP Semiconductors
CLRC663
High performance multi-protocol NFC frontend CLRC663 and CLRC663 plus
9.9.2 RxCrcCon
Bit
7
6
5
4
3
2
1
0
Symbol
RxForceCRCWrite
RXPresetVal
RXCRCtype
RxCRCInvert
RxCRCEn
Access
rights
r/w
r/w
r/w
r/w
r/w
Table 142. RxCrcCon register (address 2Dh)
Bit
Symbol
Description
7
RxForceCrc
Write
If set, the received CRC byte(s) are copied to the FIFO.
If cleared CRC Bytes are only checked, but not copied to the FIFO. This bit has to be
always set in case of a not byte aligned CRC (e.g. ISO/IEC 18000-3 mode 3/ EPC
Class-1HF)
6 to 4
RXPresetVal
Defines the CRC preset value (Hex.) for transmission. (see following table).
3 to 2
RxCRCtype
Defines which type of CRC (CRC8/CRC16/CRC5) is calculated:
• 00h -- CRC5
• 01h -- CRC8
• 02h -- CRC16
• 03h -- RFU
1
RxCrcInvert
If set, the CRC check is done for the inverted CRC.
0
RxCrcEn
If set, the CRC is checked and in case of a wrong CRC an error flag is set. Otherwise
the CRC is calculated but the error flag is not modified.
Table 143. RxCrcCon bits
RXPresetVal[6...4]
CRC16
CRC8
CRC5
0h
0000h
00h
00h
1h
6363h
12h
12h
2h
A671h
BFh
-
3h
FFFEh
FDh
-
4h
-
-
-
5h
-
-
-
6h
User defined
User defined
User defined
7h
FFFFh
FFh
1Fh
Table 144. Receiver CRC preset value configuration
9.10 Transmitter data configuration registers
9.10.1 TxDataNum
Bit
7
6
5
4
3
2
1
0
Symbol
RFU
RFU-
RFU-
KeepBitGrid
DataEn
TxLastBits
Table 145. TxDataNum register (address 2Eh)
CLRC663
All information provided in this document is subject to legal disclaimers.
© 2024 NXP B.V. All rights reserved.
Product data sheet
Rev. 5.3 — 3 January 2024
86 / 177



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