參數(shù)資料
型號: MFRC52201HN1
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Contactless reader IC
封裝: MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html&
文件頁數(shù): 12/92頁
文件大小: 691K
代理商: MFRC52201HN1
MFRC522_35
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.5 — 21 June 2010
112135
12 of 92
NXP Semiconductors
MFRC522
Contactless reader IC
8.1.3.3
UART framing
Table 11.
Bit
Start
Data
Stop
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.
Pin
RX (pin 24)
TX (pin 31)
Write data:
To write data to the MFRC522 using the UART interface, the structure shown
in
Table 13
must be used.
The first byte sent defines both the mode and the address.
UART framing
Length
1-bit
8 bits
1-bit
Value
0
data
1
Read data byte order
Byte 0
address
-
Byte 1
-
data 0
(1) Reserved.
Fig 9.
UART read data timing diagram
001aak588
SA
ADDRESS
RX
TX
MX
DTRQ
A0
A1
A2
A3
A4
A5
(1)
SO
SA
D0
D1
D2
D3
D4
D5
D6
D7
SO
DATA
R/W
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