WI.232FHSS-250-R Radiotronix, WI.232FHSS-250-R Datasheet - Page 15

• Manufacturer Part Number: WI.232FHSS-250-R
• Description: RF Modules & Development Tools 900MHz FHSS Low
• Manufacturer: Radiotronix

Specifications of WI.232FHSS-250-R

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: WI232FHSS-250-R

WI.232FHSS-25-R/ WI.232FHSS-250-R DATASHEET
2.4. Addressing Modes
The Wi.232FHSS module has a very flexible addressing scheme incorporated into its firmware. The
addressing modes can be dynamically changed as the module operates. Selection of the addressing
mode is made through the
addressing mode forces the transmitter to address packets according to this configuration. When
receiving, a module will receive and process all addressing types, regardless of
configuration. If the received message matches the addressing criteria, it will be passed through to the
UART for transmission to the host processor.
2.3.1. Standby
Standby is selected by writing a 0x02 to regOPMODE. In this mode, the internal oscillator of the module’s
protocol controller is lowered to its slowest setting. The transmitter and receiver hardware is in power-down,
but the radio IC’s oscillator is enabled and running. The Wi.232FHSS-250-R™ module equipped with
version 1.1.0 or newer firmware wakes from standby in less than 6ms. The Wi.232FHSS modules will wake
from standby in 8ms. A negative-going pulse on RxD wakes the module. This negative-going pulse should
be at least 1 bit-time in duration, so sending any byte to the UART will wake it due to the negative-going start
bit. Because the module’s oscillator is not capable at running at ultra-low speeds, use of this mode is not
recommended for new applications. The RAM contents are preserved during standby. If the RAM fails an
integrity check, the module will issue itself a software reset to force reinitialization.
2.3.2. Sleep
Sleep is selected by writing a 0x01 to regOPMODE. The internal oscillator of the module’s protocol controller
is lowered to its slowest setting, and all radio IC services are stopped (receiver, transmitter, oscillator, etc.).
The Wi.232FHSS-250-R™ equipped with version 1.1.0 or newer firmware wakes from sleep in less than
6ms. Older versions of Wi.232FHSS-250-R™ and Wi.232FHSS-25™ wake from sleep in 8ms. A negative-
going pulse on RxD wakes the module. This negative-going pulse should be at least 1 bit-time in duration,
so sending any byte to the UART will wake it due to the negative-going start bit. Because the module’s
oscillator is not capable at running at ultra-low speeds, use of this mode is not recommended for new
applications. The RAM contents are preserved during sleep. If the RAM fails an integrity check, the module
will issue itself a software reset to force reinitialization.
2.3.3. Deep Sleep
Deep sleep is selected by writing a 0x03 to regOPMODE. When the module is put into deep sleep, the CTS
pin is brought high to indicate that the module is not ready to accept UART data. The radio IC is placed in its
lowest power mode and all services are stopped. The protocol controller’s oscillator is also stopped and all
non-essential portions of the chip are turned off. While powered, this mode consumes the least amount of
current. The Wi.232FHSS-250-R™ equipped with version 1.1.0 or newer firmware wakes from deep sleep in
less than 6ms. Older versions of Wi.232FHSS-250-R™ and Wi.232FHSS-25™ wake from deep sleep in
8ms. A negative-going pulse of at least 20μs on C2CK/RST starts the waking process, but the module
doesn’t begin executing wake instructions until the C2CK/RST pin is returned high. As with the other low-
power modes, the RAM contents are preserved. If the RAM fails an integrity check, the module will issue
itself a software reset to force reinitialization. Note that, if your program changes the volatile data rate register
during the host application initialization (regUARTDATARATE), the reinitialization will return the module to
the value indicated by the non-volatile counterpart (regNVUSERDATARATE).
regNVNETWORKMODE
14
and
regNETWORKMODE
registers. Selection of an
regNETWORKMODE
Revision 1.1.0