Customer Configuration (Ccfg) - Texas Instruments SimpleLink CC2620 Technical Reference Manual

Customer Configuration (CCFG)

9.1 Customer Configuration (CCFG)
• Image valid bit (normally set by the programming tool)
• Failure analysis access configuration
• Custom MAC address
• Bootloader configuration
• TAP and DAP access configuration
In TI distributed software, the CCFG parameters are set at compile time in the ccfg.c file. The CCFG
settings are set by default to allow full debugging of the device. The CCFG settings are not recommended
for production.
The recommended way to configure a device for final production is as follows:
1. The BL_CONFIG:BOOTLOADER_ENABLE register and the BL_CONFIG:BL_ENABLE register must
be set to 0x00 to disallow access to Flash contents through the bootloader interface.
2. The CCFG_TI_OPTIONS:TI_FA_ENABLE register must be set to 0x00 to disallow failure analysis
access by TI.
3. The CCFG_TAP_DAP_0:PRCM_TAP_ENABLE register, the
CCFG_TAP_DAP_0:TEST_TAP_ENABLE register, and the CCFG_TAP_DAP_0:CPU_DAP_ENABLE
register must be set to set to 0x00 to disallow access to these module through JTAG.
4. The CCFG_TAP_DAP_1 register must be set to 0x0000 0000 to disallow access to these modules
through JTAG.
5. The IMAGE_VALID_CONF:IMAGE_VALID register must be set to 0x0000 0000 to pass control to the
programmed image in Flash at boot.
6. Optionally, the ERASE_CONF:CHIP_ERASE_DIS_N register can be set to 0x0 to disallow erasing of
the Flash.
7. Use the CCFG_PROT_n registers to write and erase protect the sectors of Flash that are not designed
to be updated in-system by the final product.
NOTE: Enabling some of the functionality in the ENABLE fields in CCFG are contingent on the
corresponding ENABLE field in FCFG that has been set to enabled by the TI production test.
This is the case for the CCFG_TAP_DAP_0:TEST_TAP_ENABLE register for example,
which is enabled in FCFG in some products in the family while it is not enabled in others. In
the products where the CCFG_TAP_DAP_0:TEST_TAP_ENABLE register is not enabled in
FCFG, the value in the corresponding CCFG field is ignored and the functionality is disabled.
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Device Configuration
Copyright © 2015, Texas Instruments Incorporated
SWCU117C – February 2015 – Revised September 2015
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