Reset And Boot Modules; Baf Configuration - STMicroelectronics SPC572L series Reference Manual

RM0400
Register description
UART Preset Timeout register (UARTPTO)
UART Current Timeout register (UARTCTO)
DMA Tx Enable register (DMATXE)
DMA Rx Enable register (DMARXE)
6.7.8

Reset and Boot modules

6.7.9

BAF configuration

This section summarizes how the module has been configured in the chip. For a
comprehensive description of the module itself, see the module's dedicated chapter.
6.7.9.1 Memory map
The BAF is located in a 16 KB block of flash that is mapped adjacent to the UTEST flash
memory block. The BAF block base address is 0040_4000h. It is one time programmable
(OTP) and is programmed during factory test. The address space and memory used by the
BAF code are shown in
BAF version number
BAF code entry point
BAF data area and stack
6.7.9.2 Search boot header and boot options
The BAF searches the flash memory for the boot header, checking the first word location of
the 4 × 16 KB blocks and then the 4 × 256 KB blocks. The blocks are searched in the order
shown in the following table and once a Boot Header is found, no further blocks are
searched.
Search
order
1st 256 KB Code flash memory block0
2nd 256 KB Code flash memory block1
3rd 256 KB Code flash memory block2
4th 256 KB Code flash memory block3
Table 50. LINFlexD implemented registers(Continued)
Table 51.
Table 51. BAF memory organization
BAF Component
Table 52. Locations of boot headers
Block
DocID027809 Rev 4
linflex_0
0xFFE8C000
Address offset Address offset
(hex)
90
94
98
9C
Device configuration
linflex_1 linflex_14
0xFFE90000 0xFFEA8000
Address offset
(hex)
50
54
58
5C
Address
0040_4000h
0040_4100h
4000_0000h–4000_02FFh
Address
0100_0000h
0104_0000h
0108_0000h
010C_0000h
(hex)
50
54
58
5C
171/2058
184