Firewall (FW) RM0351
146/1830 DocID024597 Rev 5
4.4.5 Volatile data segment start address (FW_VDSSA)
Address offset: 0x10
Reset value: 0x0000 0000
4.4.6 Volatile data segment length (FW_VDSL)
Address offset: 0x14
Reset value: 0x0000 0000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
ADD
[17:16]
rw rw
15141312111098 7 6543210
ADD[15:6] Res. Res. Res. Res. Res. Res.
rw
Bits 31:18 Reserved, must be kept at the reset value.
Bit 17 ADD[17]: Volatile data segment start address (only for STM32L496xx/4A6xx devices)
Bits 16:6 ADD[16:6]: Volatile data segment start address
The LSB bits of the start address (bit 5:0) are reserved and forced to 0 in order to allow a
64-byte granularity.
Note: These bits can only be written before enabling the Firewall. Refer to Section 4.3.5:
Firewall initialization
Bits 5:0 Reserved, must be kept at the reset value.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
LENG
[17:16]
rw rw
1514131211109876543210
LENG[15:6] Res. Res. Res. Res. Res. Res.
rw
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