CLRC63201TSLASH0FE datasheet(108/163 Pages) PHILIPS

108 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

108

Confidential

test possibilities for the SL RC 400 using the pin MFOUT.

The following chapters describe the relevant registers used to configure and control the serial signal switch.

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

Input Signal for Decoder

Constant 0

Output of the analog part. This is the default configuration.

Direct connection to MFIN, expecting an 847.5 kHz sub-carrier signal modulated

by a Manchester coded signal.

Direct connection to MFIN, expecting a Manchester coded signal.

Table 15-1: Values for DecoderSource

ModulatorSource defines the signal that modulates the transmitted 13.56 MHz energy carrier. The modulated

signal drives the pins TX1 and TX2.

ModulatorSource

Input Signal for Modulator

Constant 0 (energy carrier off at pin TX1 and TX2).

Constant 1 (continuous energy carrier delivered at pin TX1 and TX2).

Modulation signal (envelope) from the internal coder. This is the default

configuration.

Direct connection to MFIN, expecting a Miller pulse coded signal.

Table 15-2: Values for ModulatorSource

MFOUTSelect selects the output signal, which is routed to the pin MFOUT.

MFOUTSelect

Signal Routed to Pin MFOUT

Constant Low

Constant High

Modulation signal (envelope) from the internal coder.

Serial data stream that is to be transmitted

(same as for MFOUTSelect = 2, but not coded by the selected pulse coder yet).

Output signal of the receiver circuit (card modulation signal regenerated

and delayed)

Output signal of the subcarrier demodulator (Manchester-coded card signal)

RFU

able 15-3: Values for MFOUTSelect

To use MFOUTSelect, the value of test signal control bit SignalToMFOUT has to be 0.

CLRC63201T/0FE Datasheet(PDF) 108 Page - NXP Semiconductors

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