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RFM95 Scheda tecnica(PDF) 56 Page - HOPE Microelectronics CO., Ltd. |
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RFM95 Scheda tecnica(HTML) 56 Page - HOPE Microelectronics CO., Ltd. |
56 / 121 page Page 56 RFM95/96/97/98(W) Tel: + 86-755-82973805 Fax: + 86-755-82973550 E-mail: sales@hoperf.com http:/ / www.hoperf.com WIRELESS & SENSING PRELIMINARY DATASHEET 4.2.8.2. Sequencer Transitions The transitions between sequencer states are listed in the forthcoming table. Table 71 Sequencer Transition Options Variable Transition IdleMode Selects the chip mode during Idle state: 0: Standby mode 1: Sleep mode FromStart Controls the Sequencer transition when the SequencerStart bit is set to 1 in Sleep or Standby mode: 00: to LowPowerSelection 01: to Receive state 10: to Transmit state 11: to Transmit state on a FifoThreshold interrupt LowPowerSelection Selects Sequencer LowPower state after a to LowPowerSelection transition 0: SequencerOff state with chip on Initial mode 1: Idle state with chip on Standby or Sleep mode depending on IdleMode Note: Initial mode is the chip LowPower mode at Sequencer start. FromIdle Controls the Sequencer transition from the Idle state on a T1 interrupt: 0: to Transmit state 1: to Receive state FromTransmit Controls the Sequencer transition from the Transmit state: 0: to LowPowerSelection on a PacketSent interrupt 1: to Receive state on a PacketSent interrupt FromReceive Controls the Sequencer transition from the Receive state: 000 and 111: unused 001: to PacketReceived state on a PayloadReady interrupt 010: to LowPowerSelection on a PayloadReady interrupt 011: to PacketReceived state on a CrcOk interrupt. If CRC is wrong (corrupted packet, with CRC on but CrcAutoClearOn is off), the PayloadReady interrupt will drive the sequencer to RxTimeout state. 100: to SequencerOff state on a Rssi interrupt 101: to SequencerOff state on a SyncAddress interrupt 110: to SequencerOff state on a PreambleDetect interrupt Irrespective of this setting, transition to LowPowerSelection on a T2 interrupt FromRxTimeout Controls the state-machine transition from the Receive state on a RxTimeout interrupt (and on PayloadReady if FromReceive = 011): 00: to Receive state via ReceiveRestart 01: to Transmit state 10: to LowPowerSelection 11: to SequencerOff state Note: RxTimeout interrupt is a TimeoutRxRssi, TimeoutRxPreamble or TimeoutSignalSync interrupt. FromPacketReceived Controls the state-machine transition from the PacketReceived state: 000: to SequencerOff state 001: to Transmit on a FifoEmpty interrupt 010: to LowPowerSelection 011: to Receive via FS mode, if frequency was changed 100: to Receive state (no frequency change) |
Codice articolo simile - RFM95 |
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Descrizione simile - RFM95 |
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