ST STM32F405 Reference Manual page 1715

RM0090
Read only = 0xXXXX XXXX where X is factory-programmed
31 30 29
r r r
15 14 13
r r r
Bits 31:0 UID(95:64): 95:6 Unique ID bits
39.2 Flash size
Base address: 0x1FFF 7A22
Address offset: 0x00
Read only = 0xXXXX where X is factory-programmed
15 14 13
r r r
Bits 15:0 F_ID(15:0): Flash memory size
This bitfield indicates the size of the device Flash memory expressed in Kbytes.
As an example, 0x0400 corresponds to 1024 Kbytes.
28 27 26 25
r r r r
12 11 10 9
r r r r
12 11 10 9
r r r r
24 23 22
UID(95:80)
r r r
8 7 6
UID(79:64)
r r r
8 7 6
F_SIZE
r r r
RM0090 Rev 18
Device electronic signature
21 20 19 18
r r r r
5 4 3 2
r r r r
5 4 3 2
r r r r
17 16
r r
1 0
r r
1 0
r r
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