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OM25180FDKM Datasheet(PDF) 26 Page - NXP Semiconductors |
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OM25180FDKM Datasheet(HTML) 26 Page - NXP Semiconductors |
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26 / 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 26 of 149 NXP Semiconductors PN5180 High-performance multi-protocol full NFC Forum-compliant frontend Description: This instruction is used to switch the mode. It is only possible to switch from normal mode to Standby, LPCD or Autocoll mode. Switching back to normal mode is not possible using this instruction. The modes Standby, LPCD and Autocoll terminate on specific conditions. Once a configured mode (Standby, LPCD, Autocoll) terminates, normal mode is entered again. To force an exit from Standby, LPCD or Autocoll mode to normal mode, the host controller has to reset the PN5180. Condition: Parameter ‘mode’ has to be in the range from 0 to– 2, inclusive. Dependent on the selected mode, different parameters have to be passed: In case parameter ‘mode’ is set to 0 (Standby): Field ‘Wake-up Control’ must contain a bit mask indicating the enabled wake-up sources and if GPO shall be toggled. Field ‘Wake-up Counter Value’ must contain the value used for the wake-up counter (= time PN5180 remains in standby). The value shall be in the range from 1 – 2690, inclusive. The field has to be present, even if wake-up counter is not defined as wake-up source. In this case, the field ‘wake-up Counter value’ is ignored. No instructions must be sent while being in this mode. Termination is indicated using an interrupt. In case parameter ‘mode’ is set to 1 (LPCD): Parameter 1 Mode 1...n Array of ‘n’ elements {Mode parameter} 1 byte Mode parameter: Number of total bytes depends on selected mode Return value - - Table 19. Standby configuration Parameter Length (byte) Value/Description Wake-up Control 1 Bit mask controlling the wake-up source to be used and GPO handling. Wake-up Counter Value 2 Used value for wake-up counter in msecs. Maximum supported value is 2690 Table 20. Standby wake-up counter configuration b7 b6 b5 b4 b3 b2 b1 b1 0 000 00 RFU X Wake-up on external RF field, if bit is set to 1b. X Wake-up on wake-up counter expires, if bit is set to 1b. Table 18. SWITCH_MODE Payload Length (byte) Value/Description |
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