CC3220 Datasheet, PDF (57/84 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless and Internet-of-Things Solution, a Single-Chip Wireless MCU

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CC3220
SWAS035A – SEPTEMBER 2016 – REVISED FEBRUARY 2017
Code and Data Security:
• Network passwords and certificates are encrypted and signed.
• Cloning protection—Application and data files are encrypted by a unique key per device.
• Access control—Access to application and data files only by using a token provided in file creation
time. If an unauthorized access is detected, a tamper protection lockdown mechanism takes effect.
• Encrypted and Authenticated file system (not supported in CC3220R)
• Secured boot—Authentication of the application image on every boot
• Code and data encryption (not supported in CC3220R)—User application and data files are encrypted
in sFlash.
• Code and data authentication (not supported in CC3220R)—User Application and data files are
authenticated with a public key certificate.
• Offloaded crypto library for asymmetric keys, including the ability to create key-pair, sign and verify
data buffer
• Recovery mechanism
Device Security:
• Separate execution environments—Application processor and network processor run on separate ARM
cores
• Initial secure programming (not supported in CC3220R)—Allows for keeping the content confidential on
the production line
• Debug security (not supported in CC3220R)
– JTAG lock
– Debug ports lock
• True random number generator
Figure 5-2 shows the high-level structure of the CC3220R device. The network information files
(passwords and certificates) are encrypted using a device-specific key.
Peripherals
SPI and I2C
GPIO
UART
PWM
ADC
-
MCU
ARM^® Cortex^®-M4
256-KB RAM
OEM
Application
CC3220R
Network Processor + MCU
Network Processor
Internet
HTTPS
TLS/SSL
TCP/IP
Wi-Fi^®
MAC
Baseband
Radio
Internet
Serial Flash
OEM
Application
Data Files
Network information
Copyright © 2017, Texas Instruments Incorporated
Figure 5-2. CC3220R High-Level Structure
Copyright © 2016–2017, Texas Instruments Incorporated
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Detailed Description
57