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CLRC663 Datasheet(PDF) 94 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) 94 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
94 of 132
NXP Semiconductors
CLRC663
Contactless reader IC
9.12.3 RxWait
Selects internal receiver settings.
9.12.4 RxThreshold
Selects minimum threshold level for the bit decoder.
4
EGT_Check
If set to 1, the EGT is checked and if it is too long
a protocol error is set. (This is only valid for ISO/IEC14443 Type B)
3
EMD_Sup
Enables the EMD suppression according ISO/IEC14443. If an error
occurs within the first three bytes, these three bytes are assumed to be
EMD, ignored and the FIFO is reset. A collision is treated as an error
as well If a valid SOF was received, the EMD_Sup is set and a frame
of less than 3 bytes had been received. RX_IRq is not set in this EMD
error cases. If RxForceCRCWrite is set, the FIFO should not be read
out before three bytes are written into.
2 to 0
Baudrate
Defines the baud rate of the receiving signal.
2h: 26 kBd
3h: 52 kBd
4h: 106 kBd
5h: 212 kBd
6h: 424 kBd
7h: 847 kBd
all remaining values are RFU
Table 156. RxCtrl bits
Bit
Symbol
Description
Table 157. RxWait register (address 36h)
Bit
7
6
5
4
3
2
1
0
Symbol
RxWaitEtu
RxWait
Access
rights
r/w
r/w
Table 158. RxWait bits
Bit
Symbol
Description
7
RXWaitEtu
If set to 0, the RxWait time is RxWait
 16/13.56 MHz
If set to 1, the RxWait time is RxWait
 (0.5/DBFreq)
6 to 0
RxWait
Defines the time after sending, where every input is ignored.
Table 159. RxThreshold register (address 37h)
Bit
7
6
5
4
3
2
1
0
Symbol
MinLevel
MinLevelP
Access
rights
r/w
r/w


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