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CLRC663 Datasheet(PDF) 93 Page - NXP Semiconductors |
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CLRC663 Datasheet(HTML) 93 Page - NXP Semiconductors |
93 / 132 page ![]() CLRC663 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet COMPANY PUBLIC Rev. 3.3 — 3 April 2012 171133 93 of 132 NXP Semiconductors CLRC663 Contactless reader IC 9.12 Receiver configuration registers 9.12.1 RxSofD 9.12.2 RxCtrl Table 153. RxSofD register (address 34h) Bit 7 6 5 4 3 2 1 0 Symbol RFU SOF_En SOFDetected RFU SubC_En SubC_Detected SubC_Present Access rights - r/w dy - r/w dy r Table 154. RxSofD bits Bit Symbol Description 7 to 6 RFU - 5 SOF_En If set and a SOF is detected an RxSOFIrq is raised 4 SOF_Detected Shows that a SOF is or was detected. Can be cleared by SW 3RFU - 2 SubC_En If set and a subcarrier is detected an RxSOFIrq is raised. 1 SubC_Detected Shows that a subcarrier is or was detected. Can be cleared by SW 0 SubC_Present Shows that a subcarrier is currently detected. Table 155. RxCtrl register (address 35h) Bit 7 6 5 4 3 2 1 0 Symbol RxAllowBits RxMultiple RxEOFType EGT_Check EMD_Sup Baudrate Access rights r/w r/w r/w r/w r/w r/w Table 156. RxCtrl bits Bit Symbol Description 7 RxAllowBits If set, data is written into FIFO even if CRC is enabled, and no complete byte has been received. 6 RxMultiple If set, RxMultiple is activated and the receiver will not terminate automatically (refer Section 8.10.3.6 “Receive command”). If set to logic 1, at the end of a received data stream an error byte is added to the FIFO. The error byte is a copy of the Error register. 5 RxEOFType 0: EOF as defined in the RxEOFSymbolReg is expected. 1: ISO/IEC14443B EOF is expected. Note: Clearing this bit to 0 and clearing bit 0 and bit 1 in the RxEOFSymbolReg disables the EOF check |
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