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MFRC522 数据表(PDF) 60 Page - NXP Semiconductors |
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MFRC522 数据表(HTML) 60 Page - NXP Semiconductors |
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60 / 96 page ![]() MFRC522_33 © NXP B.V. 2009. All rights reserved. Product data sheet PUBLIC Rev. 3 — 26 October 2009 112133 60 of 96 NXP Semiconductors MFRC522 Contactless reader IC 9.3.4 Page 3: Test 9.3.4.1 Reserved register 30h Functionality is reserved for future use. 9.3.4.2 TestSel1Reg register General test signal configuration. 9.3.4.3 TestSel2Reg register General test signal configuration and PRBS control. Table 116. TCounterValReg register lower bit descriptions Bit Symbol Description 7 to 0 TCounterVal_Lo [7:0] timer value lower 8 bits Table 117. Reserved register (address 30h); reset value: 00h bit allocation Bit 7 6 5 4 3 2 1 0 Symbol reserved Access - Table 118. Reserved register bit descriptions Bit Symbol Description 7 to 0 reserved reserved for future use Table 119. TestSel1Reg register (address 31h); reset value: 00h bit allocation Bit 7 6 5 4 3 2 1 0 Symbol reserved TstBusBitSel[2:0] Access - R/W Table 120. TestSel1Reg register bit descriptions Bit Symbol Description 7 to 3 reserved reserved for future use 2 to 0 TstBusBitSel [2:0] selects a test bus signal which is output at pin MFOUT if AnalogSelAux2[3:0] = FFh in AnalogTestReg register, test bus signal is also output at pins AUX1 or AUX2 Table 121. TestSel2Reg register (address 32h); reset value: 00h bit allocation Bit 7 6 5 4 3 2 1 0 Symbol TstBusFlip PRBS9 PRBS15 TestBusSel[4:0] Access R/W R/W R/W R/W |
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