MFRC53101T/0FE,112 NXP Semiconductors, MFRC53101T/0FE,112 Datasheet - Page 21

• Manufacturer Part Number: MFRC53101T/0FE,112
• Description: IC MIFARE HS READER 32-SOIC
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC53101T/0FE,112

• Rf Type: Read Only
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B, ISO15693
• Package / Case: 32-SOIC (0.300", 7.50mm Width)
• Product: RFID Readers
• Operating Temperature Range: - 25 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-2224-5; 935269691112; MFRC531; MFRC53101TD

NXP Semiconductors
MFRC531_34
Product data sheet
PUBLIC
9.4.3 Configuration of pin IRQ
9.4.4 Register overview interrupt request system
The logic level of the IRq flag bit is visible on pin IRQ. The signal on pin IRQ can also be
controlled using the following IRQPinConfig register bits.
Remark: During the reset phase (see
logic 1 and bit IRQPushPull is set to logic 0. This results in a high-impedance on pin IRQ.
Table 21
Table 21.
Flags
HiAlertIEn
HiAlertIRq
IdleIEn
IdleIRq
IRq
IRQInv
IRQPushPull
LoAlertIEn
LoAlertIRq
RxIEn
RxIRq
SetIEn
SetIRq
TimerIEn
TimerIRq
TxIEn
TxIRq
•
•
bit IRQInv: the signal on pin IRQ is equal to the logic level of bit IRq when this bit is set
to logic 0. When set to logic 1, the signal on pin IRQ is inverted with respect to bit IRq.
bit IRQPushPull: when set to logic 1, pin IRQ has CMOS output characteristics. When
it is set to logic 0, it is an open-drain output which requires an external resistor to
achieve a HIGH-level at pin IRQ.
shows the related interrupt request system flags in alphabetical order.
Associated Interrupt request system registers and flags
Rev. 3.4 — 26 January 2010
Register name
InterruptEn
InterruptRq
InterruptEn
InterruptRq
PrimaryStatus
IRQPinConfig
IRQPinConfig
InterruptEn
InterruptRq
InterruptEn
InterruptRq
InterruptEn
InterruptRq
InterruptEn
InterruptRq
InterruptEn
InterruptRq
056634
Section 9.7.2 on page
Bit
1
1
2
2
3
1
0
0
0
3
3
7
7
5
5
4
4
28) bit IRQInv is set to
ISO/IEC 14443 reader IC
MFRC531
Register address
06h
07h
06h
07h
03h
07h
07h
06h
07h
06h
07h
06h
07h
06h
07h
06h
07h
© NXP B.V. 2010. All rights reserved.
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