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RC522 Datasheet(PDF) 81 Page - NXP Semiconductors

Part # RC522
Description  Contactless Reader IC
PDF  109 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

RC522 Datasheet(HTML) 81 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
81 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
19.3.4 Example: Output RxActive on AUX 1 and TxActive on AUX 2
The following Figure 27 shows the RXActive and TXActive signal in accordance to the RF
communication. The AnalogTestReg was set to CDh.
Remark: At 106 kbit/s, RxActive is HIGH during databits, parity and CRC reception.
Startbits are not included.
At 106 kbit/s, TxActive is HIGH during startbits, databits, parity and CRC
transmission.
At 212, 424 and 848 kbit/s, RxActive is HIGH during datbits and CRC reseption.
Startbits are not included.
At 212, 424 and 848 kbit/s, TxActive is HIGH during databits and CRC
transmission.
Fig 27. Output RxActive on AUX 1 and TxActive on AUX 2.



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