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CLRC663 Datasheet(PDF) 71 Page - NXP Semiconductors

Part No. CLRC663
Description  Contactless reader IC
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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CLRC663 Datasheet(HTML) 71 Page - NXP Semiconductors

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CLRC663
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.3 — 3 April 2012
171133
71 of 132
NXP Semiconductors
CLRC663
Contactless reader IC
9.6.3 RxBitCtrl
Receiver control register.
Table 69.
Status register (address 0Bh)
Bit
7
6
5
4
3
2
1
0
Symbol
-
-
Crypto1On
-
-
ComState
Access
rights
RFURFU
dy
RFURFU
r
Table 70.
Status bits
Bit
Symbol
Description
7to 6
-
RFU
5
Crypto1On Indicates if the MIFARE Crypto is on. Clearing this bit is switching the
MIFARE Crypto off. The bit can only be set by the MFAuthent command.
4to3
-
RFU
2 to 0
ComState
ComState shows the status of the transmitter and receiver state machine:
000b ... Idle
001b ... TxWait
011b ... Transmitting
101b ... RxWait
110b ... Wait for data
111b ... Receiving
100b ... not used
Table 71.
RxBitCtrl register (address 0Ch);
Bit
7
6
5
4
3
2
1
0
Symbol
ValuesAfterColl
RxAlign
NoColl
RxLastBits
Access
rights
r/w
r/w
r/w
w
Table 72.
RxBitCtrl bits
Bit
Symbol
Description
7
ValuesAfter
Coll
If cleared, every received bit after a collision is replaced by a zero. This
function is needed for ISO/IEC14443 anticollision


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