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| 型號： | MFRC52201HN1 |
| 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： | 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)： | 40/92頁 |
| 文件大?。?/td> | 691K |
| 代理商： | MFRC52201HN1 |
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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
40 of 92
NXP Semiconductors
MFRC522
Contactless reader IC
9.3.1.8
Status1Reg register
Contains status bits of the CRC, interrupt and FIFO buffer.
Table 35.
Bit
Symbol
Access
Table 36.
Bit Symbol
7
reserved
6
CRCOk
Status1Reg register (address 07h); reset value: 21h bit allocation
7
6
5
reserved
CRCOk
CRCReady
-
R
R
4
3
2
1
0
IRq
R
TRunning
R
reserved
-
HiAlert
R
LoAlert
R
Status1Reg register bit descriptions
Value Description
-
reserved for future use
1
the CRC result is zero
for data transmission and reception, the CRCOk bit is undefined: 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
MFRC522’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 number of bytes stored in the FIFO buffer corresponds to equation:
HiAlert
64
FIFOLength
–
(
=
5
4
3
2
1
example:
FIFO length = 60, WaterLevel = 4
→
HiAlert = 1
FIFO length = 59, WaterLevel = 4
→
HiAlert = 0
the number of bytes stored in the FIFO buffer corresponds to equation:
LoAlert
FIFOLength
WaterLevel
≤
=
0
LoAlert
1
example:
FIFO length = 4, WaterLevel = 4
→
LoAlert = 1
FIFO length = 5, WaterLevel = 4
→
LoAlert = 0
)
WaterLevel
≤
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相關代理商/技術參數(shù) |
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|---|---|
| MFRC52201HN1,115 | 功能描述:RFID應答器 RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52201HN1,118 | 功能描述:RFID應答器 RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52201HN1,151 | 功能描述:RFID應答器 Contactless Reader 32-Pin RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52201HN1,157 | 功能描述:RFID應答器 CL READER IC’S RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52201HN1/TRAYB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Contactless reader IC |
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