CC3220MOD_17 Datasheet, PDF (56/88 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless Module Solutions (S and SF)

CC3220MOD
SWRS206A – MARCH 2017 – REVISED JUNE 2017
www.ti.com
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
• Secured boot – Authentication of the application image on every boot
• Code and data encryption – User application and data files are encrypted in sFlash.
• Code and data authentication – 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 – Allows for keeping the content confidential on the production line
• Debug security
– JTAG lock
– Debug ports lock
• True random number generator
Figure 6-1 shows the high-level structure of the CC3220S and CC3220SF devices that are contained
within the CC3220MODS and CC3220MODSF modules, respectively. The application image, user data,
and network information files (passwords, certificates) are encrypted using a device-specific key.
Peripherals
SPI and I2C
GPIO
UART
PWM
ADC
-
CC3220S and CC3220SF
Network Processor + MCU
MCU
ARM^® Cortex^®-M4
256-KB RAM /
1-MB Flash (CC3220SF)
OEM
Application
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 6-1. CC3220S and CC3220SF High-Level Structure
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Detailed Description
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Copyright © 2017, Texas Instruments Incorporated