mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 46

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
MFRC531_34
Product data sheet
PUBLIC
Table 38.
Flag(s)
IFDetectBusy
IRq
IRQInv
IRQPushPull
ISO Selection[1:0]
KeyErr
LoAlert
LoAlertIEn
LoAlertIRq
LPOff
MFOUTSelect[2:0]
MinLevel[3:0]
ModemState[2:0]
ModulatorSource[1:0]
ModWidth[7:0]
NoRxEGT
NoRxEOF
NoRxSOF
NoTxEOF
NoTxSOF
PageSelect[2:0]
ParityEn
ParityErr
ParityOdd
PowerDown
RcvClkSelI
RxAlign[2:0]
RxAutoPD
RxCRCEn
RxCoding
RxFraming[1:0]
RxIEn
RxIRq
RxLastBits[2:0]
RxMultiple
RxWait[7:0]
SetIEn
SetIRq
SignalToMFOUT
SOFWidth[1:0]
MFRC531 register flags overview
Rev. 3.4 — 26 January 2010
Register
Command
PrimaryStatus
IRQPinConfig
IRQPinConfig
RxControl1
ErrorFlag
PrimaryStatus
InterruptEn
InterruptRq
RxControl1
MFOUTSelect
RxThreshold
PrimaryStatus
TxControl
ModWidth
BPSKDemControl
BPSKDemControl
BPSKDemControl
TypeBFraming
TypeBFraming
Page
ChannelRedundancy
ErrorFlag
ChannelRedundancy
Control
RxControl2
BitFraming
RxControl2
ChannelRedundancy
DecoderControl
DecoderControl
InterruptEn
InterruptRq
SecondaryStatus
DecoderControl
RxWait
InterruptEn
InterruptRq
TestDigiSelect
TypeBFraming
056634
…continued
7
3
0
4 to 3
6
0
0
0
2
7 to 0
6
5
7
6
7
2 to 0
0
1
1
4
7
6 to 4
6
3
0
3
3
6
7 to 0
7
7
7
1 to 0
Bit
1
2 to 0
7 to 4
6 to 4
6 to 5
4 to 3
2 to 0
Address
01h
03h
2Dh
2Dh
19h
0Ah
03h
06h
07h
19h
26h
1Ch
03h
11h
15h
1Dh
1Dh
1Dh
17h
17h
00h, 08h, 10h, 18h, 20h, 28h, 30h
and 38h
22h
0Ah
22h
09h
1Eh
0Fh
1Eh
22h
1Ah
1Ah
06h
07h
05h
1Ah
21h
06h
07h
3Dh
17h
ISO/IEC 14443 reader IC
MFRC531
© NXP B.V. 2010. All rights reserved.
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