SLRC400 Datasheet, PDF (94/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
15.3 Registers Relevant for the Serial Signal Switch
The flags DecoderSource define the input signal for the internal Manchester decoder in the following way:
DecoderSource
0
1
2
3
Input Signal for Decoder
Constant 0
Output of the analog part. This is the default configuration.
RFU
RFU
Table 15-1: Values for DecoderSource
ModulatorSource defines the signal that modulates the transmitted 13.56 MHz carrier frequenzy. The
modulated signal drives the pins TX1 and TX2.
ModulatorSource
0
1
2
3
Input Signal for Modulator
Constant 0 (carrier frequency off at pin TX1 and TX2).
Constant 1 (continuous carrier frequency delivered at pin TX1 and TX2).
Modulation signal (envelope) from the internal coder. This is the default
configuration.
RFU
Table 15-2: Values for ModulatorSource
SIGOUTSelect defines the input signal for the internal Manchester decoder in the following way:
SIGOUTSelect
0
1
2
3
4
5
6
7
Signal Routed to Pin SIGOUT
Constant 0
Constant 1
Modulation signal (envelope) from the internal coder.
Serial data stream that is to be transmitted
(same as for SIGOUTSelect = 2, but not coded by the “selected” pulse coder yet).
Output signal of the receiver circuit (label modulation signal regenerated
and delayed)
Output signal of the sub-carrier demodulator (Manchester-coded label signal)
RFU
RFU
Table 15-3: Values for SIGOUTselect
Note: To use SIGOUTSelect, the value of test signal control bit SignalToSIGOUT has to be 0.
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Preliminary