Syscfg Main Features - ST STM32L4x6 Reference Manual

RM0351
8 System configuration controller (SYSCFG)
8.1

SYSCFG main features

The STM32L4x6 devices feature a set of configuration registers. The main purposes of the
system configuration controller are the following:
•
Remapping memory areas
•
Managing the external interrupt line connection to the GPIOs
•
Managing robustness feature
• Setting SRAM2 write protection and software erase
•
Configuring FPU interrupts
• Enabling the firewall
•
Enabling /disabling I
booster for I/Os analog switches.
8.2 SYSCFG registers
8.2.1 SYSCFG memory remap register (SYSCFG_MEMRMP)
This register is used for specific configurations on memory remap.
Address offset: 0x00
Reset value: 0x0000 000X (X is the memory mode selected by the BOOT0 pin and BOOT1
option bit)
31 30 29
Res Res Res
15 14 13
Res Res Res
Bits 31:9 Reserved, must be kept at reset value.
2
C Fast-mode Plus driving capability on some I/Os and voltage
28 27 26 25
Res Res Res Res
12 11 10 9
Res Res Res Res
System configuration controller (SYSCFG)
24 23 22
Res Res Res
8 7 6
FB_
Res Res
MODE
rw
DocID024597 Rev 3
21 20 19 18
Res Res Res Res
5 4 3 2
Res Res Res
rw
17 16
Res Res
1 0
MEM_MODE
rw rw
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