SX1235 datasheet(80/104 Pages) SEMTECH

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Page 80

SX1235

WIRELESS & SENSING

DATASHEET

Rev 1 - December 2012

RegSeqConfig2

(0x37)

7-5 FromReceive

0x00 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 (1)

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

(1) If the CRC is wrong (corrupted packet, with CRC on but

CrcAutoClearOn=0), the PayloadReady interrupt will drive the

sequencer to RxTimeout state.

4-3 FromRxTimeout

0x00 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

2-0 FromPacketReceived

0x00

Controls the state-machine transition from the

PacketReceived state:

000: to SequencerOff state

001: to Transmit state on a

FifoEmpty interrupt

010: to LowPowerSelection

011: to Receive via FS mode, if frequency was changed

100: to Receive state (no frequency change)

RegTimerResol

(0x38)

7-4 unused

unused

3-2 Timer1Resolution

0x00

Resolution of Timer 1

00: Timer1 disabled

01: 64 us

10: 4.1 ms

11: 262 ms

1-0 Timer2Resolution

0x00

Resolution of Timer 2

00: Timer2 disabled

01: 64 us

10: 4.1 ms

11: 262 ms

RegTimer1Coef

(0x39)

7-0 Timer1Coefficient

0xf5

Multiplying coefficient for Timer 1

RegTimer2Coef

(0x3a)

7-0 Timer2Coefficient

0x20

Multiplying coefficient for Timer 2

Name

(Address)

Bits

Variable Name

Mode

Default

value

Description

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