MFRC52201HN1/TRAYB NXP [NXP Semiconductors], MFRC52201HN1/TRAYB Datasheet - Page 14

• Manufacturer Part Number: MFRC52201HN1/TRAYB
• Description: Contactless reader IC
• Manufacturer: NXP [NXP Semiconductors]

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ADDRESS
DATA
RX
SA
A0
A1
A2
A3
A4
A5
R/W
SO
SA
D0
D1
D2
D3
D4
D5
D6
D7
SO
(1)
ADDRESS
TX
SA
A0
A1
A2
A3
A4
A5
(1)
R/W
SO
MX
DTRQ
001aak589
(1) Reserved.
Fig 10. UART write data timing diagram
Remark: The data byte can be sent directly after the address byte on pin RX.
Address byte: The address byte has to meet the following format:
The MSB of the first byte sets the mode used. To read data from the MFRC522, the MSB is set to logic 1. To write data to the
MFRC522 the MSB is set to logic 0. Bit 6 is reserved for future use, and bits 5 to 0 define the address; see
Table
14.