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): 36/92頁
文件大?。?/td> 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
36 of 92
NXP Semiconductors
MFRC522
Contactless reader IC
9.3 Register descriptions
9.3.1
Page 0: Command and status
9.3.1.1
Reserved register 00h
Functionality is reserved for future use.
Table 21.
Bit
Symbol
Access
Table 22.
Bit
7 to 0
9.3.1.2
CommandReg register
Starts and stops command execution.
Table 23.
Bit
Symbol:
Access:
Table 24.
Bit
7 to 6 reserved
5
RcvOff
4
PowerDown
9.3.1.3
ComIEnReg register
Control bits to enable and disable the passing of interrupt requests.
Table 25.
Bit
Symbol
Access
Reserved register (address 00h); reset value: 00h bit allocation
7
6
5
4
3
2
1
0
reserved
-
Reserved register bit descriptions
Symbol
Description
-
reserved
CommandReg register (address 01h); reset value: 20h bit allocation
7
6
5
reserved
RcvOff
PowerDown
-
R/W
4
3
2
1
0
Command[3:0]
D
D
CommandReg register bit descriptions
Symbol
Value
-
1
1
0
Description
reserved for future use
analog part of the receiver is switched off
Soft power-down mode entered
MFRC522 starts the wake up procedure during which this bit is
read as a logic 1; it is read as a logic 0 when the MFRC522 is
ready; see
Section 8.6.2 on page 31
Remark:
The PowerDown bit cannot be set when the SoftReset
command is activated
activates a command based on the Command value; reading this
register shows which command is executed; see
Section 10.3 on
page 67
3 to 0 Command[3:0] -
ComIEnReg register (address 02h); reset value: 80h bit allocation
7
6
5
4
IRqInv
TxIEn
RxIEn
IdleIEn
R/W
R/W
R/W
R/W
3
2
1
0
HiAlertIEn
R/W
LoAlertIEn
R/W
ErrIEn
R/W
TimerIEn
R/W
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