CLRC663 Datasheet, PDF (104/132 Pages) NXP Semiconductors – Contactless reader IC

NXP Semiconductors
CLRC663
Contactless reader IC
9.16.2 TxDataCon
Table 197. TxDataCon (address 4Ah)
Bit
7
6
5
Symbol
DCodeType
Access
r/w
rights
4
3
2
1
0
DSCFreq
DSCFreq
r/w
r/w
Table 198. TxDataCon bits
Bit
Symbol
Description
7 to 4
DCodeType
specifies the type of encoding of data to be used
0h - no special coding
1h - collider datastream is decoded
2h - RFU 3h - RFU
4h - return to zero code - pulse at first position
5h - return to zero code - pulse at 2nd position
6h - return to zero code - pulse at 3rd position
7h - return to zero code - pulse at 4th position
8h - 1 out of 4 coding
9h - 1 out of 256 code (range 0 - 255) [ICODE SLI]
Ah - 1 out of 256 code (range 0 - 255; 00h is encoded with no
modulation, value 256 not used) [ICODE 1]
Bh - 1 out of 256 code (range 0 - 255; 00h is encoded with a pulse on
last position) [I Code quite value]
Ch- Pulse internal encoded (PIE) [ISO/IEC 18000-3 mode 3/ EPC
Class-1HF]
Dh - RFU
Eh - RFU
Fh - RFU
3
DSCFreq
Specifies the subcarrier frequency of the used envelope.
0h - 424 kHz
1h - 848 kHz
Note: This setting is only relevant if an envelope is used which
involves a subcarrier, e.g. Manchester with subcarrier coding.
2 to 0 DBFreq
Specifies the frequency of the bit stream
0h - RFU
1h - RFU
2h - 26 kHz
3h - 53 kHz
4h - 106 kHz
5h - 212 kHz
6h - 424 kHz
7h - 848 kHz
9.16.3 TxDataMOD
Table 199. TxDataMod register (address 4Bh)
Bit
7
6
Symbol
Frame step
DMillerEn
Access
r/w
r/w
rights
5
4
DPulseType
r/w
3
DInvert
r/w
2
1
0
DEnvType
r/w
CLRC663
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 — 3 April 2012
171133
© NXP B.V. 2012. All rights reserved.
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