CW308T-EFR32MG21¶
The EFR32MG21A board features the EFR32MG21A010F1024 from Silicon Labs. This device features a number of security features, including a dedicated “Secure Element” core that performs a secure boot operation, and DPA countermeasures on cryptographic primitives.
The RF section is not broken out to a 50-ohm matched header, but instead a simple 3-pin header which allows potential usage in laboratory environments.
See the -SOCKET board for an optional socket version. See the -MG21B board for the version wtih ‘Secure Vault’.
Attention
This target requires an external programmer to reload code.
Quick Links¶
Specifications¶
| Feature | Notes/Range |
|---|---|
| Target Device | EFR32MG21A010F1024 |
| Target Architecture | Arm Cortex M33 |
| Vcc | 1.2V |
| Programming | JTAG |
| Hardware Crypto | Yes |
| Availability | Standalone |
| Status | Production |
| Shunt | 22-ohm |
Power Supply¶
Break-out for various voltage rails, allowing over-driving of internal regulator to reduce noise for DPA measurements, or for testing fault injection detection capability.
Security Features¶
EFR32MG21A (“Mighty Gecko Multiprotocol Wireless SoC”) has a high-performance Cortex M33 (TrustZone-M) with a seperate “secure element” core that handles the secure boot operation, along with multiple cryptographic accelerators (both AES and ECC) that include advertised DPA countermeasures.
Programming¶
A JTAG programmer is typically required for these devices.