CLRC632 Datasheet, PDF (49/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
Product Specification Rev. 3.0; May 2003
CL RC632
5.2.4.7 RxControl2 Register
controls decoder behaviour and defines the input source for the receiver.
Name:RxControl2
Address: 0x1E
Reset value: 01000001, 0x41
7
6
5
4
3
2
1
0
RcvClkSelI RxAutoPD 0
0
0
0
DecoderSource
Access
r/w
Rights
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Description of the bits
Bit
Symbol
Function
7
RcvClkSelI If set to 1, the I-clock is used for the receiver clock.
Set to 0 indicates, that the Q-clock is used. I-clock and Q-clock are 90° phase
shifted to each other
6
RxAutoPD If set to 1, the receiver circuit is automatically switched on before receiving and
switched off afterwards. This may be used to reduce current consumption.
If set to 0, the receiver is always activated.
5-2
0000
These values shall not be changed
1-0 DecoderSource Selects the source for the decoder input:
00: Low
01: Internal Demodulator
10: A subcarrier modulated Manchester coded signal at Pin MFIN
11: A baseband Manchester coded signal at Pin MFIN
49
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