CC3220MOD Datasheet, PDF (60/82 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless Module Solution

CC3220MOD
SWRS206 – MARCH 2017
www.ti.com
START ADDRESS
0xE004 1000
0xE004 2000
Table 6-4. Memory Map (continued)
END ADDRESS
0xE004 1FFF
0xE00F FFFF
DESCRIPTION
Reserved for embedded trace macrocell (ETM)
Reserved
COMMENT
6.8 Restoring Factory Default Configuration
The device has an internal recovery mechanism that rolls back the file system to its predefined factory
image or restoring the factory default parameters of the device. The factory image is kept in a separate
sector on the sFLASH in a secure manner and cannot be accessed from the host processor. The following
restore modes are supported:
• None—no factory restore settings
• Enable restore of factory default parameters
• Enable restore of factory image and factory default parameters
The restore process is performed by calling software APIs, or by pulling or forcing SOP[2:0] = 110 pins
and toggling the nRESET pin from low to high.
The process is fail-safe and resumes operation if a power failure occurs before the restore is finished. The
restore process typically takes about 8 seconds, depending on the attributes of the serial Flash vendor.
6.9 Boot Modes
6.9.1 Overview
The boot process of the application processor is a 2-phase process. The first phase consists of
unrestricted access to all register space and configuration of the specific device setting. In the second
phase, the application processor executes user-specific code.
Figure 6-2 shows the bootloader flow chart.
Boot Mode =
(Fn2WJ or Fn4WJ)
(See Note.)
Boot Mode = LDfrUART
(See Note.)
M4 Power ON
Cortex loads the PC with contents of
0x4 location, which is in ROM and part
of BootCode.
Enable Clk to M4, Release
Reset to M4
Device-Init
done?
No
Execute Device Init
(From Secure ROM)
Yes
SOP=UARTLOAD
No
Yes
Invoke
downloader
Download the code using
SLProgrammer and jump
to the application
Clear
Device-Init-Done
Valid Apps code in
SFLASH?
No
Yes
Jump to the user code.
Infite Loop
Note: For definitions of the SoP mode functional configurations, see Table 6-5.
Figure 6-2. Bootloader Flow Chart
SWAS032-012
60
Detailed Description
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