MFRC52201HN1,157 NXP Semiconductors, MFRC52201HN1,157 Datasheet - Page 77

• Manufacturer Part Number: MFRC52201HN1,157
• Description: IC SMART CARD READER
• Manufacturer: NXP Semiconductors

Specifications of MFRC52201HN1,157

• Controller Type: Smart Card Interface
• Interface: SPI
• Voltage - Supply: 1.6 V ~ 3.6 V
• Current - Supply: 60mA
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935280547157; MFRC52201HN1; MFRC52201HN1

NXP Semiconductors
112132
Product data sheet
19.3 Testsignals at pin AUX
Table 151: Description of Testsignals
Table 152: TestSel2Reg register (address 0Dh)
Table 153: Description of Testsignals
With the MFRC522, the user may select internal signals to measure them at pin AUX.
These measurements can be helpful during the design-in phase to optimise the design or
for test purpose.
Table 154
setting SelAux1 or SelAux2 in the register AnalogTestReg.
Please also refer to register AnalogSelAux.
Remark: The DAC has a current output. It is recommended to use a 1 kΩ pull-down
resistance at pins AUX1/AUX2.
Table 154: Testsignals description
Pins
D6
D5
D4
D3
D2
D1
Pins
D6
D5
D4 to D3
D2
D1
SelAux
0000
0001
0010
0011
0100
0101
0110
0111 - 1001
1010
1011
Testsignal
Pins
shows an overview of the signal that can be switched to pin AUX1 or AUX2 by
Testsignal
sdata
scoll
svalid
sover
RCV_reset
-
Testsignal
clkstable
clk27/8
-
clk27
-
clkstable
D6
Description for Aux1 / Aux2
Tristate
DAC: register TestDAC 1/2
DAC: testsignal corr1
Reserved
DAC: testsignal MinLevel
DAC: ADC_I
DAC: ADC_Q
Reserved
High
low
Rev. 3.2 — 22 May 2007
clk27/8
Description
shows the actual received data stream.
shows if in the actual bit a collision has been detected (106 kbit/s only)
shows if sdata and scoll are valid
shows that the receiver has detected a stop condition
shows if the receiver is reset
reserved
Description
shows if the oscillator delivers a stable signal.
shows the output signal of the oscillator divided by 8
reserved
shows the output signal of the oscillator
reserved
D5
D4
-
D3
-
clk27
D2
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
D1
-
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