STM32WB50CG datasheet(21/119 Pages) STMICROELECTRONICS

21 / 119 page

DS13047 Rev 5

21/119

STM32WB50CG STM32WB30CE

Functional overview

3.6.3

802.15.4 general description

The STM32WB50CG and STM32WB30CE embed a dedicated 802.15.4 hardware MAC:



Support for 802.15.4 release 2011



Advanced MAC frame filtering; hardwired firewall: Programmable filters based on

source/destination addresses, frame version, security enabled, frame type



256-byte RX FIFO; Up to 8 frames capacity, additional frame information (timing, mean

RSSI, LQI)



128-byte TX FIFO with retention

–

Content not lost, retransmissions possible under CPU2 control



Automatic frame acknowledgment, with programmable delay



Advanced channel access features

–

Full CSMA-CA support

–

Superframe timer

–

Beaconing support (require LSE)

–

Flexible TX control with programmable delay



Configuration registers with retention available down to Standby mode for

software/auto-restore



Autonomous sniffer, Wakeup based on timer or CPU2 request



Automatic frame transmission/reception/sleep periods, Interrupt to the CPU2 on

particular events

3.6.4

RF pin description

The RF block contains dedicated pins, listed in Table 3.

3.6.5

Typical RF application schematic

The schematic in Figure 4 and the external components listed in Table 3 are purely

indicative. For more details refer to the “Reference design” provided in separate documents.

Table 3. RF pin list

Name

Type

Description

RF1

I/O

RF Input/output, must be connected to the antenna through a low-pass matching network

OSC_OUT

32 MHz main oscillator, also used as HSE source

OSC_IN

RF_TX_

MOD_EXT_PA

External PA transmit control

VDDRF

VDD Dedicated supply, must be connected to VDD

VSSRF(1)

VSS To be connected to GND

1. The exposed pad must be connected to GND plane for correct RF operation.

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