Dcf Records - STMicroelectronics SPC572L series Reference Manual

Device Configuration Format (DCF) Records
'TEST DCF Record Only' so that only DCF Records stored in TEST flash can write to the
DCF Client.
A list of DCF clients is shown in
these are not accessible by the user).
The DCF Records select the target DCF client via a 30-bit field in the DCF Record
consisting of:
•
A 15-bit Chip-Select field—each module that includes DCF clients is assigned a Chip
Select during chip definition.
• A 15-bit Address field—the address field is only relevant to the address decoding within
that module and may not necessarily relate to the address of a register visible to
software.
8.3

DCF records

DCF records appear as contiguous double-word (64-bit) entries programmed in a reserved
area of OTP UTEST flash memory beginning at 0x0040_0200.
The structure of a DCF Record is shown in
Offset 0x00
Bit
0 1 2 3 4
No.
Offset 0x04
Bit
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
No.
Field
0–31 32 bits of data to be written to the DCF Client.
Data[0:31]
Chip Select n.
Note: Only assert one chip per DCF record to select the target module for the DCF client. All other
32–46
Chip Selects should be negated.
CSn
1 Chip select is asserted
0 Chip Select is negated
Address of the DCF client within the selected module.
47–61
Note: Address decoding for DCF clients may not match the standard software address map
Address[16:2]
decoding. Details of DCF Client addresses are defined in each module chapter.
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Table
0x01
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0x05
Figure 28. DCF record structure
Table 69. DCF record field description
DocID027809 Rev 4
71. (TEST DCF Record Only clients are not shown as
Figure 28.
0x02
Data[0:31]
0x06
Address[16:2]
Description
RM0400
0x03
0x07