MFRC522 datasheet(77/109 Pages) NXP | Contactless Reader IC

Part No.	MFRC522

Description	Contactless Reader IC

Download	109 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

77 / 109 page

112132

Product data sheet

Rev. 3.2 — 22 May 2007

77 of 109

NXP Semiconductors

MFRC522

Contactless Reader IC

19.3 Testsignals at pin AUX

With the MFRC522, the user may select internal signals to measure them at pin AUX.

These measurements can be helpful during the design-in phase to optimise the design or

for test purpose.

Table 154 shows an overview of the signal that can be switched to pin AUX1 or AUX2 by

setting SelAux1 or SelAux2 in the register AnalogTestReg.

Please also refer to register AnalogSelAux.

Remark: The DAC has a current output. It is recommended to use a 1 k

Ω pull-down

resistance at pins AUX1/AUX2.

Table 151: Description of Testsignals

Pins

Testsignal

Description

D6

sdata

shows the actual received data stream.

D5

scoll

shows if in the actual bit a collision has been detected (106 kbit/s only)

D4

svalid

shows if sdata and scoll are valid

D3

sover

shows that the receiver has detected a stop condition

D2

RCV_reset

shows if the receiver is reset

D1

-

reserved

Table 152: TestSel2Reg register (address 0Dh)

Pins

D6

D5

D4

D3

D2

D1

Testsignal

clkstable

clk27/8

-

clk27

-

Table 153: Description of Testsignals

Pins

Testsignal

Description

D6

clkstable

shows if the oscillator delivers a stable signal.

D5

clk27/8

shows the output signal of the oscillator divided by 8

D4 to D3

-

reserved

D2

clk27

shows the output signal of the oscillator

D1

-

reserved

Table 154: Testsignals description

SelAux

Description for Aux1 / Aux2

0000

Tristate

0001

DAC: register TestDAC 1/2

0010

DAC: testsignal corr1

0011

Reserved

0100

DAC: testsignal MinLevel

0101

DAC: ADC_I

0110

DAC: ADC_Q

0111 - 1001

Reserved

1010

High

1011

low

Similar Part No. - MFRC522

Manufacturer	Part No.	Datasheet	Description
NXP Semiconductors	MFRC522	526Kb / 96P	Contactless reader IC Rev. 3.3-26 October 2009
	MFRC522	760Kb / 96P	Contactless reader IC Rev. 3.4-5 March 2010
	MFRC52201HN1/TRAYB	526Kb / 96P	Contactless reader IC Rev. 3.3-26 October 2009
	MFRC52201HN1/TRAYB	760Kb / 96P	Contactless reader IC Rev. 3.4-5 March 2010
	MFRC52201HN1/TRAYBM	526Kb / 96P	Contactless reader IC Rev. 3.3-26 October 2009

More results

Similar Description - MFRC522

Manufacturer	Part No.	Datasheet	Description
NXP Semiconductors	CLRC663	1Mb / 132P	Contactless reader IC Rev. 3.3-3 April 2012
	MFRC523	776Kb / 98P	Contactless reader IC Rev. 3.3-5 March 2010
	MFRC630	1Mb / 118P	Contactless reader IC Rev. 3.1-6 September 2012
	MFRC522	760Kb / 96P	Contactless reader IC Rev. 3.4-5 March 2010
	MFRC522	526Kb / 96P	Contactless reader IC Rev. 3.3-26 October 2009
	CLRC632	900Kb / 163P	Multiple Protocol Contactless Reader IC May 2003
STMicroelectronics	STRF0000	19Kb / 2P	CONTACTLESS READER CHIP SET
	STRF2163	21Kb / 2P	CONTACTLESS READER CHIP SET
	ST16-19RFRDCS010	14Kb / 2P	CONTACTLESS READER CHIP SET
NXP Semiconductors	CLRD701	192Kb / 16P	PEGODA Contactless Smart Card Reader November 2004

More results

MFRC522 Datasheet(PDF) 77 Page - NXP Semiconductors

MFRC522 Datasheet(HTML) 77 Page - NXP Semiconductors

Similar Part No. - MFRC522

Similar Description - MFRC522

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL