ST STM32L4 5 Series User Manual

System configuration controller (SYSCFG) RM0351
320/1830 DocID024597 Rev 5
9.2.9 SYSCFG SRAM2 write protection register (SYSCFG_SWPR)
Address offset: 0x20
System reset value: 0x0000 0000
9.2.10 SYSCFG SRAM2 key register (SYSCFG_SKR)
Address offset: 0x24
System reset value: 0x0000 0000
Bit 2 PVDL: PVD lock enable bit
This bit is set by software and cleared only by a system reset. It can be used to
enable and lock the PVD connection to TIM1/8/15/16/17 Break input, as well as
the PVDE and PLS[2:0] in the PWR_CR2 register.
0: PVD interrupt disconnected from TIM1/8/15/16/17 Break input. PVDE and
PLS[2:0] bits can be programmed by the application.
1: PVD interrupt connected to TIM1/8/15/16/17 Break input, PVDE and PLS[2:0]
bits are read only.
Bit 1 SPL: SRAM2 parity lock bit
This bit is set by software and cleared only by a system reset. It can be used to
enable and lock the SRAM2 parity error signal connection to TIM1/8/15/16/17
Break inputs.
0: SRAM2 parity error signal disconnected from TIM1/8/15/16/17 Break inputs
1: SRAM2 parity error signal connected to TIM1/8/15/16/17 Break inputs
Bit 0 CLL: Cortex
®
-M4 LOCKUP (Hardfault) output enable bit
This bit is set by software and cleared only by a system reset. It can be used to
enable and lock the connection of Cortex
®
-M4 LOCKUP (Hardfault) output to
TIM1/8/15/16/17 Break input
0: Cortex
®
-M4 LOCKUP output disconnected from TIM1/8/15/16/17 Break inputs
1: Cortex
®
-M4 LOCKUP output connected to TIM1/8/15/16/17 Break inputs
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
P31WP P30WP P29WP P28WP P27WP P26WP P25WP P24WP P23WP P22WP P21WP P20WP P19WP P18WP P17WP P16WP
rs rs rs rs rs rs rs rs rs rs rs rs rs rs rs rs
1514131211109876543210
P15WP P14WP P13WP P12WP P11WP P10WP P9WP P8WP P7WP P6WP P5WP P4WP P3WP P2WP P1WP P0WP
rs rs rs rs rs rs rs rs rs rs rs rs rs rs rs rs
Bits 31:0 PxWP (x = 0 to 31): SRAM2 page x write protection
These bits are set by software and cleared only by a system reset.
0: Write protection of SRAM2 page x is disabled.
1: Write protection of SRAM2 page x is enabled.

ST STM32L4 5 Series Specifications

General

Brand	ST
Model	STM32L4 5 Series
Category	Microcontrollers
Language	English