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CLRC63201T/0FE Datasheet(PDF) 52 Page - NXP Semiconductors |
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CLRC63201T/0FE Datasheet(HTML) 52 Page - NXP Semiconductors |
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52 / 163 page ![]() Philips Semiconductors Product Specification Rev. 3.0; May 2003 Multiple Protocol Contactless Reader IC CL RC632 52 Confidential 5.2.5.3 ChannelRedundancy Register Selects kind and mode of checking the data integrity on the RF-channel. Name: ChannelRedundancy Address: 0x22 Reset value: 00000011, 0x03 7 6 5 4 3 2 1 0 0 0 CRC 3309 CRC8 RxCRCEn TxCRCEn ParityOdd ParityEn Access Rights r/w r/w r/w r/w r/w r/w r/w r/w Description of the bits Bit Symbol Function 7-6 00 This value shall not be changed 5 CRC3309 If set to 1, CRC-calculation is done according ISO/IEC3309 (ISO14443B) and ISO 15693. Note: For usage according to ISO14443A this bit has to be 0. For usage according to I•CODE1 this bit has to be 0. 4 CRC8 If set to 1, an 8-bit CRC is calculated. If set to 0, a 16-bit CRC is calculated. 3 RxCRCEn If set to 1, the last byte(s) of a received frame is/are interpreted as CRC byte/s. If the CRC itself is correct the CRC byte(s) is/are not passed to the FIFO. In case of an error, the CRCErr flag is set. If set to 0, no CRC is expected. 2 TxCRCEn If set to 1, a CRC is calculated over the transmitted data and the CRC byte(s) are appended to the data stream. If set to 0, no CRC is transmitted. 1 ParityOdd If set to 1, an odd parity is generated or expected, respectively. If set to 0 an even parity is generated or expected, respectively. Note: For usage according to ISO14443-A this bit has to be 1. 0 ParityEn If set to 1, a parity bit is inserted in the transmitted data stream after each byte and expected in the received data stream after each byte (MIFARE ®, ISO14443A) If set to 0, no parity bit is inserted or expected (ISO14443B) |
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