RM0440 Rev 4 377/2126
RM0440 System configuration controller (SYSCFG)
380
Note: Some of the I/O pins mentioned in the above register may not be available on small
packages.
10.2.7 SYSCFG CCM SRAM control and status register (SYSCFG_SCSR)
Address offset: 0x18
System 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 Res Res
1514131211109876543210
Res Res Res Res Res Res Res Res Res Res Res Res Res Res
CCM
BSY
CCM
ER
rrw
Bits 31:2 Reserved, must be kept at reset value
Bit 1 CCMBSY: CCM SRAM busy by erase operation
0: No CCM SRAM erase operation is on going.
1: CCM SRAM erase operation is on going.
Bit 0 CCMER: CCM SRAM Erase
Setting this bit starts a hardware CCM SRAM erase operation. This bit is
automatically cleared at the end of the CCM SRAM erase operation.
Note: This bit is write-protected: setting this bit is possible only after the correct
key sequence is written in the SYSCFG_SKR register.