MFRC523 Просмотр технического описания (PDF) - NXP Semiconductors.

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производитель

MFRC523

Contactless Reader IC

NXP Semiconductors. 

NXP Semiconductors

MFRC523

Contactless reader IC

⎛

⎞

transfer

speed

=

⎜

⎜

⎜

⎝

--(----B--2-2-----R7--(---B-.--_-1---R--T-2---_----1T--×----0----+--1-–-----0-3-1----6-3)-------)⎠⎟⎟⎟

(2)

Remark: Transfer speeds above 1228.8 kBd are not supported.

8.3.3.3 UART framing

Table 11.

Bit

Start

Data

Stop

UART framing

Length

1-bit

8 bits

1-bit

Value

0

data

1

Remark: The LSB for data and address bytes must be sent first. No parity bit is used

during transmission.

Read data: To read data using the UART interface, the flow shown in Table 12 must be

used. The first byte sent defines both the mode and the address.

Table 12. Read data byte order

Pin

Byte 0

RX (pin 24)

address

TX (pin 31)

-

Byte 1

-

data 0

MFRC523_33

Product data sheet

PUBLIC

All information provided in this document is subject to legal disclaimers.

Rev. 3.3 — 5 March 2010

115233

© NXP B.V. 2010. All rights reserved.

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