EVM-915-DTS-BZS Linx Technologies, EVM-915-DTS-BZS Datasheet - Page 16

• Manufacturer Part Number: EVM-915-DTS-BZS
• Description: RF Development Tools 915 MHz Wireless Module DTS Brazil
• Manufacturer: Linx Technologies
• Type: Wi-Fir

Specifications of EVM-915-DTS-BZS

• Rohs: yes
• Product: Evaluation Modules
• Tool Is For Evaluation Of: Wi.232DTSB-R
• Frequency: 915 MHz
• Operating Supply Voltage: 3 V to 3.6 V
• Interface Type: UART
• Factory Pack Quantity: 1

Network Group
Figure 26: Network Group
Modules can be grouped into networks. Although only modules with the
group ID will be able to talk to each other, modules in different groups but
on the same channel will still coordinate transmissions through the CSMA
mechanism. Valid values for this register are 0 to 127. The default group
setting is 0.
CRC Control
Figure 27: CRC Control
Set to 0x01 to enable receive CRC checking, or 0x00 to disable it. The
default CRC mode setting is enabled.
UART Minimum Transmission Unit
Figure 28: UART Minimum Transmission Unit
This register determines the UART buffer level that will trigger the
transmission of a packet. The minimum value is 1 and the maximum value
is 144. The default value for this register is 64, which provides a good mix
of throughput and latency
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Verbose Mode
Setting this register to 0x00 will suppress the start-up message, including
firmware version, which is sent to the UART when the module is reset.
A value of 0x01 will cause the message to be displayed after reset.
By default, the module start-up message will be displayed.
*The volatile register counterpart (0x55) has no function.
CSMA Enable
Carrier-sense multiple access (CSMA) is a best-effort delivery system that
listens to the channel before transmitting a message. If another Wi.232
module is already transmitting when a message is queued, the module will
wait before sending its payload. This helps to eliminate RF message
corruption at the expense of additional latency. Setting this register to 0x01
will enable CSMA. Setting this register to 0x00 will disable CSMA.
By default, CSMA is enabled.
Sleep Control
Figure 31: Sleep Control
Setting this register to 0x01 will place the module into sleep mode; 0x02
will place the module in Standby mode. Sleep mode places the module
in the lowest power inactive state and requires approximately 7–8ms to
resume transmission or reception once awakened. Standby draws ~850µA
and requires approximately 1–2ms to awaken. To wake up the module,
data should be sent to the module’s UART. Use a sequence 0x0F, 0xFF,
0xFF. Upon awakening, the module will clear the volatile register to 0x00.
The default value for this register is 0x00 (awake).
Figure 29: Verbose Mode
Figure 30: CSMA Enable
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