RFM95 datasheet(95/121 Pages) HOPERF

95 / 121 page

Page 95

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

Name

(Address)

Bits

Variable Name

Mode

Default

value

FSK/OOK Description

RegPayloadLength

(0x32)

7-0

PayloadLength(7:0)

0x40

If PacketFormat = 0 (fixed), payload length.

If PacketFormat = 1 (variable), max length in Rx, not used in Tx.

RegNodeAdrs

(0x33)

7-0

NodeAddress

0x00

Node address used in address filtering.

RegBroadcastAdrs

(0x34)

7-0

BroadcastAddress

0x00

Broadcast address used in address filtering.

TxStartCondition

0x01

Defines the condition to start packet transmission:

FifoLevel

(i.e. the number of bytes in the FIFO exceeds

FifoThreshold)

FifoEmpty goes low

(i.e. at least one byte in the FIFO)

unused

RegFifoThresh

(0x35)

5-0

FifoThreshold

0x0f

Used to trigger FifoLevel interrupt, when:

number of bytes in FIFO >= FifoThreshold + 1

Sequencer registers

SequencerStart

0x00

Controls the top level Sequencer

When set to ‘1’, executes the “Start” transition.

The sequencer can only be enabled when the chip is in Sleep or

Standby mode.

SequencerStop

0x00

Forces the Sequencer Off.

Always reads ‘0’

IdleMode

0x00

Selects chip mode during the state:

0: Standby mode

1: Sleep mode

4-3 FromStart

0x00

Controls the Sequencer transition when SequencerStart 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 FifoLevel interrupt

LowPowerSelection

0x00

Selects the 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

0x00

Controls the Sequencer transition from the Idle state on a T1

interrupt:

0: to Transmit state

1: to Receive state

RegSeqConfig1

(0x36)

FromTransmit

0x00

Controls the Sequencer transition from the Transmit state:

0: to LowPowerSelection on a PacketSent interrupt

1: to Receive state on a PacketSent interrupt

RFM95 Datasheet(PDF) 95 Page - Shenzhen Hope Microelectronics Co., Ltd.

RFM95 Datasheet(HTML) 95 Page - Shenzhen Hope Microelectronics Co., Ltd.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL