mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 105

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

NXP Semiconductors
Table 131: Reserved register (address 3Eh); reset
Table 132:Description of Reserved register bits . . . 45
Table 133:Reserved register (address 3Fh); reset
Table 134:Description of Reserved register bits . . . 45
Table 135:Connection Scheme for detecting the
Table 136:Byte Order for MOSI and MISO . . . . . . . 47
Table 137:Byte Order for MOSI and MISO . . . . . . . 48
Table 138.Address byte 0 register; address MOSI . 48
Table 139:Settings of BR_T0 and BR_T1 . . . . . . . . 49
Table 140:Selectable transfer speeds . . . . . . . . . . . 49
Table 141:UART Framing . . . . . . . . . . . . . . . . . . . . 50
Table 142:Byte Order to Read Data . . . . . . . . . . . . 50
Table 143:Byte Order to Write Data. . . . . . . . . . . . . 51
Table 144.Address byte 0 register; address MOSI . 51
Table 145:Settings for TX1 . . . . . . . . . . . . . . . . . . . 61
Table 146:Settings for TX2 . . . . . . . . . . . . . . . . . . . 62
Table 147:CRC co-processor parameters . . . . . . . . 64
Table 148:Interrupt Sources . . . . . . . . . . . . . . . . . . 68
Table 149:Command overview . . . . . . . . . . . . . . . . 72
Table 150:TestSel2Reg register (address 07h) . . . . 76
Table 151:Description of Testsignals . . . . . . . . . . . . 77
Table 152:TestSel2Reg register (address 0Dh). . . . 77
Table 153:Description of Testsignals . . . . . . . . . . . . 77
Table 154:Testsignals description . . . . . . . . . . . . . . 77
Table 155.Limiting values . . . . . . . . . . . . . . . . . . . . 83
Table 156:Operating conditions . . . . . . . . . . . . . . . 83
Table 157:Thermal characteristics . . . . . . . . . . . . . 83
Table 158:Input Pin characteristics for pins EA, I2C
Table 159:Input Pin characteristics for MFIN. . . . . . 84
Table 160:Input/Output Pin characteristics for pins D1,
Table 161:Input Pin characteristics for pin SDA . . . 84
Table 162:Output Pin characteristics for Pin MFOUT .
Table 163: Output Pin characteristics for Pin IRQ . . 85
Table 164: Input Pin characteristics for Pin Rx . . . . 85
Table 165:Input Pin characteristics for OSCIN . . . . 85
Table 166: Output Pin characteristics for Pins AUX1
Table 167: Output Pin characteristics for Pins TX1 and
Table 168: Current Consumption. . . . . . . . . . . . . . . 87
Table 169: RX Input Voltage Range . . . . . . . . . . . . 88
Table 170: RX Input Sensitivity . . . . . . . . . . . . . . . . 88
Table 171: Clock Frequency . . . . . . . . . . . . . . . . . . 88
Table 172: XTAL Oscillator . . . . . . . . . . . . . . . . . . . 89
Table 173: XTAL Oscillator . . . . . . . . . . . . . . . . . . . 89
112132
Product data sheet
value: 03h. . . . . . . . . . . . . . . . . . . . . . . . . 45
value: 00h. . . . . . . . . . . . . . . . . . . . . . . . . 45
different Interface Types . . . . . . . . . . . . . . 46
and NRESET . . . . . . . . . . . . . . . . . . . . . . 84
D2, D3, D4, D5, D6 and D7 . . . . . . . . . . . 84
85
and AUX2 . . . . . . . . . . . . . . . . . . . . . . . . . 86
TX2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Rev. 3.2 — 22 May 2007
Table 174: Timing Specification for SPI. . . . . . . . . . 90
Table 175.Overview I2C Timing in Fast mode. . . . . 91
Table 176:Abbreviations . . . . . . . . . . . . . . . . . . . . . 97
Table 177:Revision history . . . . . . . . . . . . . . . . . . . 98
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
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