參數(shù)資料
型號: MFRC52301HN1
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡
英文描述: Contactless reader IC
封裝: MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html&
文件頁數(shù): 13/98頁
文件大?。?/td> 1666K
代理商: MFRC52301HN1
MFRC523
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.7 — 8 November 2011
115237
13 of 98
NXP Semiconductors
MFRC523
Contactless reader IC
Table 11.
Transfer speed (kBd)
[1]
The resulting transfer speed error is less than 1.5 % for all described transfer speeds.
The selectable transfer speeds shown in
Table 11
are calculated according to the
following equations:
If BR_T0[2:0] = 0:
(1)
If BR_T0[2:0] > 0:
(2)
Remark:
Transfer speeds above 1228.8 kBd are not supported.
8.3.3.3
UART framing
Table 12.
Bit
Start
Data
Stop
Remark:
The LSB for data and address bytes must be sent first. No parity bit is used
during transmission.
To read data using the UART interface, the flow shown in
Table 13
must be used. The first
byte sent defines both the mode and the address.
Selectable UART transfer speeds
SerialSpeedReg value
Decimal
250
235
218
203
171
154
122
116
90
58
28
21
Transfer speed accuracy (%)
[1]
Hexadecimal
FAh
EBh
DAh
CBh
ABh
9Ah
7Ah
74h
5Ah
3Ah
1Ch
15h
7.2
9.6
14.4
19.2
38.4
57.6
115.2
128
230.4
460.8
921.6
1228.8
0.25
0.32
0.25
0.32
0.32
0.25
0.25
0.06
0.25
0.25
1.45
0.32
transfer speed
BR
_
T0
6
+
1
-------------------------------
=
transfer speed
2
6
----------------------------------
----------------------------------
=
UART framing
Length
1-bit
8-bit
1-bit
Value
0
data
1
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