參數(shù)資料
型號： MFRC52301HN1
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： 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)： 41/98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
41 of 98
NXP Semiconductors
MFRC523
Contactless reader IC
Table 37.
Bit Symbol
7
reserved
6
CRCOk
9.2.1.9
Status2Reg register
Contains status bits of the receiver, transmitter and data mode detector.
Table 38.
Bit
Symbol
Access
Table 39.
Bit
7
Status1Reg register bit descriptions
Value Description
-
reserved for future use
1
the CRC result is zero
the CRCOk bit is undefined for data transmission and reception: use
the ErrorReg register’s CRCErr bit
indicates the status of the CRC coprocessor, during calculation the
value changes to logic 0, when the calculation is done correctly the
value changes to logic 1
CRCReady 1
the CRC calculation has finished; only valid for the CRC coprocessor
calculation using the CalcCRC command
IRq
-
indicates if any interrupt source requests attention with respect to the
setting of the interrupt enable bits: see the ComIEnReg and DivIEnReg
registers
TRunning
1
MFRC523’s timer unit is running, i.e. the timer will decrement the
TCounterValReg register with the next timer clock
Remark:
in gated mode, the TRunning bit is set to logic 1 when the
timer is enabled by TModeReg register’s TGated[1:0] bits; this bit is not
influenced by the gated signal
reserved
-
reserved for future use
HiAlert
1
the alert level for the number of bytes in the FIFO buffer
(FIFOLength[6:0]) is:
otherwise value = logic 0
Example:
FIFOLength = 60, WaterLevel = 4 then HiAlert = logic 1
FIFOLength = 59, WaterLevel = 4 then HiAlert = logic 0
LoAlert
1
the alert level for number of bytes in the FIFO buffer (FIFOLength[6:0])
is:
LoAlert
FIFOLength
=
5
4
3
2
1
0
otherwise value = logic 0
Example:
FIFOLength = 4, WaterLevel = 4 then LoAlert = logic 1
FIFOLength = 5, WaterLevel = 4 then LoAlert = logic 0
HiAlert
64
FIFOLength
–
WaterLevel
=
WaterLevel
Status2Reg register (address 08h); reset value: 00h bit allocation
7
6
5
TempSensClear
I
2
CForceHS
reserved
R/W
R/W
4
3
2
ModemState[2:0]
R
1
0
MFCrypto1On
D
-
Status2Reg register bit descriptions
Symbol
TempSensClear
Value
1
Description
clears the temperature error if the temperature is below the
alarm limit of 125
C
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