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MFRC522 Datasheet(PDF) 44 Page - NXP Semiconductors

Part # MFRC522
Description  Contactless Reader IC
PDF  109 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC522 Datasheet(HTML) 44 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
44 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
9.2.4.10
TestDAC1Reg
Defines the test values for TestDAC1.
9.2.4.11
TestDAC2Reg
Defines the test value for TestDAC2.
9.2.4.12
TestADCReg
Shows the actual value of ADC I and Q channel.
Table 121: TestDAC1Reg register (address 39h); reset value: XXh
Bit
7
6
5
4
3
2
1
0
Symbol
-
TestDAC1
Access
Rights
RFU
r/w
Table 122: Description of TestDAC1Reg bits
Bit
Symbol
Description
7
-
Reserved for production tests.
6
-
Reserved for future use.
5 to 0
TestDAC1
Defines the test value for TestDAC1. The output of the DAC1 can be
switched to AUX1 by setting AnalogSelAux1 to 0001b in register
AnalogTestReg.
Table 123: TestDAC2Reg register (address 3Ah); reset value: XXh
Bit
7
6
5
4
3
2
1
0
Symbol
-
TestDAC2
Access
Rights
RFU
r/w
Table 124: Description ofTestDAC2Reg bits
Bit
Symbol
Description
7 to 6
-
Reserved for future use.
5 to 0
TestDAC2
Defines the testvalue for TestDAC2. The output of the DAC2 can be
switched to AUX2 by setting AnalogSelAux2 to 0001b in register
AnalogTestReg.
Table 125: TestADCReg register (address 3Bh); reset value: XXh
Bit
7
6
5
4
3
2
1
0
Symbol
ADC_I
ADC_Q
Access
Rights
rr
Table 126: Description of TestADCReg bits
Bit
Symbol
Description
7 to 4
ADC_I
Shows the actual value of ADC I channel.
3 to 0
ADC_Q
Shows the actual value of ADC Q channel.



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