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DocID024597 Rev 3 273/1693

RM0351 System configuration controller (SYSCFG)

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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

C Fast-mode Plus driving capability on some I/Os and voltage

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 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 Res Res

1514131211109876543210

Res Res Res Res Res Res Res

FB_

MODE

Res Res Res Res Res MEM_MODE

rw rw rw rw

Bits 31:9 Reserved, must be kept at reset value.

ST STM32L4x6 User Manual

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