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MFRC630 Datasheet(PDF) 42 Page - NXP Semiconductors |
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MFRC630 Datasheet(HTML) 42 Page - NXP Semiconductors |
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42 / 118 page  MFRC630 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet COMPANY PUBLIC Rev. 3.1 — 6 September 2012 227531 42 of 118 NXP Semiconductors MFRC630 Contactless reader IC I2C_SAM_Address: The I2C SAM Address is always defined by the EEPROM content. : The Register Set Protocol (RSP) Area contains settings for the TX registers (16 bytes) and for the RX registers (8 bytes). TxCrcPreset: The data bits are send by the analog module and are automatically extended by a CRC. 8.7.3 EEPROM initialization content LoadProtocol The MFRC630 EEPROM is initialized at production with default values which are used to reset the registers of the MFRC630 to default settings by copying the EEprom content to the registers. Note that the addresses used for copying reset values from EEprom to registers are dependent on the configured protocol and can be changed by the user. Table 28. Interface bits Bit Symbol Description 7 I2C_HSP when cleared, the high speed mode is used when set, the high speed+ mode is used (default) 6, 5 RFU - 4I2C_Address when cleared, the pins are used (default) when set, the EEPROM is used 3 Boundary Scan when cleared, the boundary scan interface is ON (default) when set, the boundary scan is OFF 2 to 0 Host 000b - RS232 001b - I2C 010b - SPI 011b - I2CL 1xxb - pin selection Table 29. Tx and Rx arrangements in the register set protocol area Section Section 4 TX Tx0 Tx1 TX2 Tx3 Section 4 TX Tx4 Tx5 TX6 TX7 Section 4 Rx RX0 RX1 RX2 RX3 RX4 RX5 RX6 RX7 Section 4 Rx RX8 RX9 RX10 RX11 RX12 RX13 RX14 RX15 Table 30. Register reset values (Hex.) (Page0) Address 0 1 2 3 4 5 6 7 Function Product ID Version Factory trim values 00 00 01 01 XX XX XX XX XX Function Factory trim values 08 XX XX XX XX XX XX XX XX Function TrimLPO Factory trim values 10 XX XX XX XX XX XX XX XX |
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