3.4 Power Supply
The MGM210P requires a single nominal supply level of 3.0 V to operate. However, it can support use cases needing different levels
for the main supply (VDD) and for digital IO (IOVDD).
The DECOUPLE pin exposes the SoC's on-chip digital supply regulator output and allows introducing an external digital supply source
via a PMIC, for example. The default recommendation is to leave the DECOUPLE pin disconnected.
All necessary components for supply decoupling and filtering are included in the module.
3.5 Security
MGM210P modules support one of two levels in the Security Portfolio offered by Silicon Labs: Secure Vault Mid or Secure Vault High.
Secure Vault is a collection of technologies that deliver state-of-the-art security and upgradability features to protect and future-proof
IoT devices against costly threats, attacks and tampering. Secure Vault Mid is the hardware-based subsystem at the core of Secure
Vault that enables a subset of its features only. MGM210PB part numbers support Secure Vault High and MGM210PA part numbers
support Secure Vault Mid.
Table 3.2. Security Features and Levels
Feature
Secure Vault
Mid
High
Secure Boot with Root of Trust and Secure Loader (RTSL)
X
X
Cryptographic Accelerator
X
X
ARM TrustZone
X
X
True Random Number Generator (TRNG)
X
X
Secure Debug with Lock/Unlock
X
X
DPA Countermeasures
X
X
Secure Key Management with PUF
X
Anti-Tamper
X
Secure Attestation
X
3.5.1 Secure Boot with Root of Trust and Secure Loader (RTSL)
The Secure Boot with RTSL authenticates a chain of trusted firmware that begins from an immutable memory (ROM).
It prevents malware injection, prevents rollback, ensures that only authentic firmware is executed, and protects Over The Air updates.
For more information about this feature, see
AN1218: Series 2 Secure Boot with RTSL
.
MGM210P Wireless Gecko Multi-Protocol Module Data Sheet
System Overview
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