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| 型號(hào)： | MFRC53001T |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | ISO-IEC 14443 A Reader IC |
| 封裝： | MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 5, 2005,;MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1 |
| 文件頁(yè)數(shù)： | 18/115頁(yè) |
| 文件大?。?/td> | 2590K |
| 代理商： | MFRC53001T |
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MFRC530_33
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.3 — 6 July 2010
057433
18 of 115
NXP Semiconductors
MFRC530
ISO/IEC 14443 A Reader IC
(1)
The LoAlert flag bit is set to logic 1 when the FIFOLevel register’s WaterLevel[5:0] bits or
less are stored in the FIFO buffer. The trigger is generated by
Equation 2
:
(2)
9.3.4
FIFO buffer registers and flags
Table 19
shows the related FIFO buffer flags in alphabetic order.
Table 19.
Flags
FIFOLength[6:0]
FIFOOvfl
FlushFIFO
HiAlert
HiAlertIEn
HiAlertIRq
LoAlert
LoAlertIEn
LoAlertIRq
WaterLevel[5:0]
9.4 Interrupt request system
The MFRC530 indicates interrupt events by setting the PrimaryStatus register bit IRq (see
Section 10.5.1.4 “PrimaryStatus register” on page 47
) and activating pin IRQ. The signal
on pin IRQ can be used to interrupt the microprocessor using its interrupt handling
capabilities ensuring efficient microprocessor software.
9.4.1
Interrupt sources overview
Table 20
shows the integrated interrupt flags, related source and setting condition. The
interrupt TimerIRq flag bit indicates an interrupt set by the timer unit. Bit TimerIRq is set
when the timer decrements from one down to zero (bit TAutoRestart disabled) or from one
to the TReLoadValue[7:0] with bit TAutoRestart enabled.
Bit TxIRq indicates interrupts from different sources and is set as follows:
the transmitter automatically sets the bit TxIRq interrupt when it is active and its state
changes from sending data to transmitting the end of frame pattern
the CRC coprocessor sets the bit TxIRq after all data from the FIFO buffer has been
processed indicated by bit CRCReady = logic 1
when EEPROM programming is finished, the bit TxIRq is set and is indicated by bit
E2Ready = logic 1
The RxIRq flag bit indicates an interrupt when the end of the received data is detected.
The IdleIRq flag bit is set when a command finishes and the content of the Command
register changes to Idle.
HiAlert
64
FIFOLength
–
(
)
WaterLevel
≤
=
LoAlert
FIFOLength
WaterLevel
≤
=
Associated FIFO buffer registers and flags
Register name
FIFOLength
ErrorFlag
Control
PrimaryStatus
InterruptEn
InterruptRq
PrimaryStatus
InterruptEn
InterruptRq
FIFOLevel
Bit
6 to 0
4
0
1
1
1
0
0
0
5 to 0
Register address
04h
0Ah
09h
03h
06h
07h
03h
06h
07h
29h
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MFRC53001T/0FE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ISO/IEC 14443 A Reader IC |
| MFRC53001T/0FE,112 | 功能描述:RFID應(yīng)答器 MIFARE HS READER RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE,518 | 功能描述:RFID應(yīng)答器 IC READER 13.56MHZ RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE112 | 制造商:NXP Semiconductors 功能描述:CNTCLESS RC 3.3V ISO14443-A/B |
| MFRC531 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Short Form Specification |
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