RF69 datasheet(43/81 Pages) ETC2

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RF69

Page 42

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4.4. AutoModes

Automatic modes of packet handler can be enabled by configuring the related parameters in RegAutoModes.

The intermediate mode of the chip is called IntermediateMode and the enter and exit conditions to/from this intermediate

mode can be configured through the parameters EnterCondition & ExitCondition.

The enter and exit conditions cannot be used independently of each other i.e. both should be enabled at the same time.

The initial and the final state is the one configured in Mode in RegOpMode. The initial & final states can be different by

configuring the modes register while the chip is in intermediate mode. The pictorial description of the auto modes is shown

below.

Intermediate State

defined by IntermediateMode

EnterCondition

ExitCondition

Initial state defined

By Mode in RegOpMode

Final state defined

By Mode in RegOpMode

Figure 23. Auto Modes of Packet Handler

Some typical examples of AutoModes usage are described below:

 Automatic transmission (AutoTx) : Mode = Sleep, IntermediateMode = Tx, EnterCondition = FifoLevel, ExitCondition =

PacketSent

 Automatic reception (AutoRx) : Mode = Rx, IntermediateMode = Sleep, EnterCondition = CrcOk, ExitCondition = falling

edge of FifoNotEmpty

 Automatic reception of acknowledge (AutoRxAck): Mode = Tx, IntermediateMode = Rx, EnterCondition = PacketSent,

ExitCondition = CrcOk

 ...

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