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9.1.1.12 BL_CONFIG Register (Offset = FD8h) [reset = C5FFFFFFh]
BL_CONFIG is shown in Figure 9-12 and described in Table 9-13.
Bootloader Configuration Configures the functionality of the ROM boot loader. If both the boot loader is
enabled and the failure analysis is enabled it is possible to force entry of the ROM boot loader even if a
valid image is present in flash.
Figure 9-12. BL_CONFIG Register
31 30 29 28 27 26 25 24
BOOTLOADER_ENABLE
R/W-C5h
23 22 21 20 19 18 17 16
RESERVED BL_LEVEL
R/W-7Fh R/W-1h
15 14 13 12 11 10 9 8
BL_PIN_NUMBER
R/W-FFh
7 6 5 4 3 2 1 0
BL_ENABLE
R/W-FFh
Table 9-13. BL_CONFIG Register Field Descriptions
Bit Field Type Reset Description
31-24 BOOTLOADER_ENABLE R/W C5h
Bootloader enable. Boot loader can be accessed if
IMAGE_VALID_CONF.IMAGE_VALID is non-zero or BL_ENABLE is
enabled (and conditions for failure analysis are met). 0xC5: Boot
loader is enabled Any other value: Boot loader is disabled
23-17 RESERVED R/W 7Fh
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
16 BL_LEVEL R/W 1h
Sets the active level of the selected pin if boot loader failure analysis
is enabled. 0: Active low. 1: Active high.
15-8 BL_PIN_NUMBER R/W FFh
DIO number that is level checked if the boot loader failure analysis is
enabled.
7-0 BL_ENABLE R/W FFh
Enables the boot loader failure analysis. 0xC5: Failure analysis
enabled. Any other value: Failure analysis disabled. NOTE! Boot
loader must be enabled (see BOOTLOADER_ENABLE) if failure
analysis is enabled.
700
Device Configuration SWCU117A–February 2015–Revised March 2015
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