EZLC4432B1-D470 Silicon Laboratories Inc, EZLC4432B1-D470 Datasheet - Page 16

• Manufacturer Part Number: EZLC4432B1-D470
• Description: RF Modules & Development Tools EZLink Kit F930 Si4432 Rev B1 470MHz
• Manufacturer: Silicon Laboratories Inc

Specifications of EZLC4432B1-D470

• Product: RF Development Tools
• Maximum Frequency: 470 MHz
• Supply Voltage (max): 3.3 V
• For Use With/related Products: Si4432, C8051F930
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EZLink UG
6.1. Platforms
RF Family:
RFIC:
Microcontroller:
The modem firmware in the radio module has three modes of operation:
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6.1.1. Standalone Mode
In standalone mode, basic RF type operations can be achieved. When PB1 button is pressed a message is sent
and LED3 (red) will blink. If the second radio modem receives the message, it replies by sending an
acknowledgement. The LED2 (green) will then blink if the acknowledgement packet is received correctly.
6.1.2. PC Mode
PC mode is designed to allow users the ability to modify some of the RF parameters of the module.
On initial connection of the module to a PC, users will be prompted to install the Silicon Labs Virtual COM port
driver.
The driver can be downloaded from the following WEB site page:
The Virtual COM port settings of the radio modules are as follows:
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In PC mode, there are two further states of operation:
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
PC mode is activated by pulling the RTS signal of the Virtual COM port low, the EZLink Chat program provides a
button in order to perform this. In PC mode the radio parameters can be changed and after a reset the values are
maintained.
6.1.3. PC Mode—Normal State
In the normal state the firmware waits for characters on the Virtual COM port.
If a character is received, it is immediately sent to the transmit buffer. If the transmit buffer becomes full (40
characters) or a 1 s timeout occurs after the last character is received, then the module generates an RF packet
and the packet is transmitted.
16
Standalone Mode
PC Mode
Si4421 Compatible Mode
Data rate is 9.6 kbps
1 stop bit
No parity bit
No handshake
Normal State:
The Command State:
https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
Data can be sent.
RF parameters can be modified.
EZRadioPRO
Si4432
C8051F930
Rev. 0.1