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OM25180FDKM Datasheet(PDF) 99 Page - NXP Semiconductors |
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OM25180FDKM Datasheet(HTML) 99 Page - NXP Semiconductors |
99 / 149 page ![]() PN5180 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet COMPANY PUBLIC Rev. 3.0 — 7 October 2016 240930 99 of 149 NXP Semiconductors PN5180 High-performance multi-protocol full NFC Forum-compliant frontend 2 SYNC_HIGH R/W 0*-1 Defines if the bit grid is fixed at maximum (1) or at a minimum(0) value of the correlation. 1 FSK R 0 If set to 1; the demodulation scheme is FSK. 0 BPSK R/W 0* If set to 1, the demodulation scheme is BPSK. Table 92. SIGPRO_RM_CONFIG_REG register (address 001Ch) bit description …continued Bit Symbol Access Value Description Table 93. RF_STATUS register (address 001Dh) bit description Bit Symbol Access Value Description 27:31 RFU R 0 - 26:24 TRANSCEIVE_STATE R 0* Holds the command bits 0* IDLE state 1 WaitTransmit state 2 Transmitting state 3 WaitReceive state 4 WaitForData state 5 Receiving state 6 LoopBack state 7 reserved 23:20 DPC_CURRENT_GEAR R 0* Current Gear of the DPC 19 DPLL_ENABLE R 0* This bit indicates that the DPLL Controller has enabled the DPLL (RF on, RF frequency ok, PLL locked) 18 CRC_OK R 0 This bit indicates the status of the actual CRC calculation. If 1 the CRC is correct; meaning the CRC register has the value 0 or the residue value if inverted CRC is used. Note: This flag should only be evaluated at the end of a communication. 17 TX_RF_STATUS R 0 If set to 1 this bit indicates that the drivers are turned on; meaning an RF-Field is created by the device itself. 16 RF_DET_STATUS R 0 If set to 1 this bit indicates that an external RF-Field is detected by the RF-level detectors (after digital filtering) 13:15 RF_ACTIVE_ERROR_CAUSE R 0 - 5 This status flag indicates the cause of an NFC-Active error. Note: These bits are only valid when the RF_ACTIVE_ERROR_IRQ is raised and is cleared as soon as the bit TX_RF_ENABLE is set to 1. 0* No Error; reset value 1 External field was detected on within TIDT timing 2 External field was detected on within TADT timing 3 No external field was detected within TADT timings 4 Peer did switch off RF-Field but no Rx event was raised (no data received) 5 - 7 Reserved 12 RX_ENABLE This bit indicates if the RxDecoder is enabled. If 1 the RxDecoder was enabled by the Transceive Unit and is now ready for data reception 11 TX_ACTIVE This bit indicates activity of the TxEncoder. If 1 a transmission is ongoing, otherwise the TxEncoder is in idle state. |
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