mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 12

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
112132
Product data sheet
Table 5:
Addr
(hex)
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Page 3: TestRegister
0
1
2
3
4
5
6
7
8
9
A
B
C-F
Register Name
CRCResultReg
Reserved
ModWidthReg
Reserved
RFCfgReg
GsNReg
CWGsPReg
ModGsPReg
TModeReg
TPrescalerReg
TReloadReg
TCounterValReg Shows the 16 bit actual timer value
Reserved
TestSel1Reg
TestSel2Reg
TestPinEnReg
TestPinValueReg Defines the values for D1 - D7 when it is used as I/O bus
TestBusReg
AutoTestReg
VersionReg
AnalogTestReg
TestDAC1Reg
TestDAC2Reg
TestADCReg
Reserved
MFRC522 Registers Overview
Rev. 3.2 — 22 May 2007
Function
Shows the actual MSB and LSB values of the CRC calculation
Reserved for future use
Controls the setting of the ModWidth
Reserved for future use
Configures the receiver gain
Selects the conductance of the antenna driver pins TX1 and TX2 for
modulation
Defines settings for the internal timer
Describes the 16 bit timer reload value
Reserved for future use
General test signal configuration
General test signal configuration and PRBS control
Enables pin output driver on D1-D7
Shows the status of the internal testbus
Controls the digital selftest
Shows the version
Controls the pins AUX1 and AUX2
Defines the test value for the TestDAC1
Defines the test value for the TestDAC2
Shows the actual value of ADC I and Q
Reserved for production tests
…continued
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
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