RFM219SW

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only main features are introduced. Remember that there are two methods to load all these parameters into the device:

Off-line Configuration

Use the RFPDK to directly burn (program) them into the embedded EEPROM of the device. The configuration retains until the

next programming. This is called the off-line configuration.

On-line Configuration

Use the RFPDK to export a HEX file of these parameters, load the content of the HEX file into the external MCU program then

writes the content into the Configuration Bank of the User Registers (See Chapter 5.11) at the beginning of the applications. The

configuration retains until the power down of the device. This is called the on-line configuration.

Either of these method works. To save the external MCU’s effort, method 1 can be used. To save the EEPROM programming

step in the manufacturing stage, method 2 can be used. The table below shows all the configurable parameters.

Table 10. Configurable Parameters on RFPDK

Category

Parameters

Descriptions

Default

Mode

RF

Settings

Frequency

The receive radio frequency, the range is from 300 to 960

MHz, with resolution of 0.01 MHz.

868.35 MHz

Basic

Advanced

Demodulation

The demodulation type, the options are: OOK or (G)FSK

demodulation.

(G)FSK

Basic

Advanced

Symbol Rate

The receiver symbol rate, the range is from 0.1 to 40 ksps

for OOK and from 0.1 to 100.0 ksps for (G)FSK, with

resolution of 0.1 ksps.

2.4 ksps

Basic

Advanced

Squelch TH

The threshold of the squelch circuit to suppress the noise,

the range is from 0 to 255.

0

Basic

Advanced

Xtal Tol. | Rx BW

The sum of the crystal frequency tolerance of the Tx and

the Rx, the range is from 0 to ±300 ppm. And the

calculated BW is configured and displayed.

±10 ppm |

100 kHz

Basic

Advanced

Xtal Stabilizing

Time

Time for the device to wait for the crystal to get settled

after power up. The options are: 78, 155, 310, 620, 1240

or 2480 us.

310 us

Basic

Advanced

Operation

Settings

Operation Mode

This determines that the chip works in Active mode by

using off-line configuration or works in Passive mode by

using on-line configuration.

Passive

Basic

Advanced

Sleep Timer

This turns on/off the sleep timer.

Off

Basic

Advanced

Sleep Time

The sleep time has the range from 3 to 134,152,192 ms.

It is only available when Active mode is selected or Sleep

Timer is on in Passive mode.

10 ms

Basic

Advanced

Rx Timer

This turns on/off the receive timer.

Off

Basic

Advanced

Rx Time

The receive time has the range from 0.04 to 2,683,043.00

ms. It is only available when Active mode is selected or

Rx Timer is on in Passive mode.

1 ms

Basic

Advanced

Rx Time Ext

The extended receive time has the range from 0.04 to

2,683,043.00 ms. It is only available when Wake-On

Radio is turned on and the Rx Timer is turned on.

200.00 ms

Advanced

Rx Early-Exit

Turn on/off the Rx early exit function, the options are: on

or off.

Off

Advanced