WI.232EUR-R Radiotronix, WI.232EUR-R Datasheet - Page 23

• Manufacturer Part Number: WI.232EUR-R
• Description: EMBEDDED RADIO MODULE
• Manufacturer: Radiotronix

Specifications of WI.232EUR-R

• Frequency Rf: 869.885MHz
• Module Interface: Serial, UART
• Tool / Board Applications: Wireless Connectivity-ZigBee, RF, Infrared, USB
• Sensitivity: -106dBm
• Data Rate Max: 76.8Kbps
• Supply Current: 65mA
• Maximum Frequency: 869.885 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Frequency: 868.225 MHz
• Minimum Operating Temperature: - 40 C
• Product: RF Modules
• Frequency Range: 868.225MHz To 869.885MHz
• Supply Voltage Range: 2.7V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

packets are received while the CMD line is active, they are still processed and presented to the
module’s UART for transmission.
Figure 10: Command and CMD Pin Timing
9.2.
Command Formatting
The Wi.232EUR module contains several volatile and non-volatile registers that control its
configuration and operation. The volatile registers all have a non-volatile mirror register that is
used to determine the default configuration when power is applied to the module. During normal
operation, the volatile registers are used to control the module.
Placing the module in the command mode allows these registers to be programmed. Byte values
in excess of 127 (0x80 or greater) must be changed into a two-byte escape sequence of the
format: 0xFE, [value - 128]. For example, the value 0x83 becomes 0xFE, 0x03. The following
function will prefix a 0xFF header and size specifier to a command sequence and create escape
sequences as needed. It is assumed that *src is populated with either the register number to
read (one byte, pass 1 into src_len) or the register number and value to write (two bytes, pass
2 into src_len). It is also assumed that the *dest buffer has enough space for the two header
characters plus, the encoded command, and the null terminator.
Wi.232EUR User’s Manual
© 2003-2007 Radiotronix Inc.
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