RM0440 Rev 4 241/2126
RM0440 Power control (PWR)
271
Table 41. Functionalities depending on the working mode
(1)
Peripheral Run Sleep
Low-power run
Low-power sleep
Stop 0/1 Standby Shutdown
VBAT
-
Wakeup capability
-
Wakeup capability
-
Wakeup capability
CPU Y - Y - - -- ----
Flash memory O
(2)
O
(2)
O
(2)
O
(2)
- -- ----
SRAM1 Y Y
(3)
YY
(3)
Y -- ----
SRAM2 Y Y
(3)
YY
(3)
Y -O
(4)
----
CCM SRAM Y Y
(3)
YY
(3)
Y -- ----
FSMC O O O O -
-- ----
QUADSPI O O O O -
-- ----
Backup Registers Y Y Y Y Y
-Y -Y-Y
Brown-out reset (BOR) Y Y Y Y Y
YY Y- --
Programmable Voltage Detector (PVD) O O O O O O- ----
Peripheral Voltage Monitor (PVM) O O O O O
O- ----
DMA O O O O - -- ----
Oscillator HSI16 O O O O
(5)
-- ----
Oscillator HSI48 O O - - -
-- ----
High Speed External (HSE) O O O O - -- ----
Low Speed Internal (LSI) O O O O O
-O ----
Low Speed External (LSE) O O O O O -O-O-O
Clock Security System (CSS) O O O O -
-- ----
Clock Security System on LSE O O O O O
OO O- --
RTC / Auto wakeup O O O O O
OO OOOO
Number of RTC Tamper pins 3 3 3 3 3
O3 O3O3
USB O
(8)
O
(8)
---O- ----
USARTx (x=1,2,3,4,5) O O O O
O
(6)
O
(6)
- ----
Low-power UART (LPUART1) O O O O
O
(6)
O
(6)
- ----
I2Cx (x=1,2,3,4) O O O O
O
(7)
O
(7)
- ----