CLRC663 Datasheet, PDF (89/132 Pages) NXP Semiconductors – Contactless reader IC

NXP Semiconductors
CLRC663
Contactless reader IC
9.10.2 TxDATAModWidth
Transmitter data modulation width register
Table 143. TxDataModWidth register (address 2Fh)
Bit
7
6
5
4
3
2
1
0
Symbol
DModWidth
Access
r/w
rights
Table 144. TxDataModWidth bits
Bit
Symbol
Description
7 to 0
DModWidth
Specifies the length of a pulse for sending data with enabled pulse
modulation. The length is given by the number of carrier clocks + 1.
A pulse can never be longer than from the start of the pulse to the end
of the bit. The starting position of a pulse is given by the setting of
TxDataMod.DPulseType. Note: This register is only used if Miller
modulation (ISO/IEC 14443A PCD) is used. The settings are also
used for the modulation width of start and/or stop symbols.
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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