User Manual

3. Radio Board Block Summary
3.1 Introduction
This section introduces the blocks of the BRD4308D Radio Board.
3.2 Radio Board Block Diagram
The block diagram of the BRD4308D Radio Board is shown in the figure below.
2.4 GHz RF
UFL
Connector
Radio
Board
Connectors
I2C
24AA0024
Serial EEPROM
GPIO
UART
Debug
Packet Trace
AEM
I2C
SPI
EFR32
xGM210P
Module
Chip
Antenna
RF In/Out
LF
Crystal
32.768k
Figure 3.1. BRD4308D Block Diagram
3.3 Radio Board Block Description
3.3.1 Wireless Module
The MGM210PB22JIA2 module incorporated on the BRD4308D Wireless Gecko Radio Board features a 32-bit Cortex
®
-M33 core,
1024 kB of flash memory, 96 kB of RAM, crystals, and a 2.4 GHz band transceiver with RF passives and integrated antenna output
power up to 10 dBm. For additional information on the MGM210PB22JIA2, refer to the MGM210P data sheet.
3.3.2 Radio Board Connectors
Two dual-row, 0.05” pitch polarized connectors make up the BRD4308D Radio Board interface to the Wireless Starter Kit Mainboard.
For more information on the pin mapping between the MGM210PB22JIA2 and the Radio Board Connector, refer to section 2.2 Radio
Board Connector Pin Associations.
3.3.3 LF Crystal Oscillator (LFXO)
The BRD4308D Radio Board has a crystal mounted. For details regarding the crystal configuration, refer to application note
AN0016.2:
Oscillator Design Considerations.
3.3.5 Serial EEPROM
The BRD4308D Radio Board is equipped with a serial I
2
C EEPROM for board identification and to store additional board-related infor-
mation.
BRD4308D Reference Manual
Radio Board Block Summary
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