Sleep Configuration
Name:
SLEEPCFG
Offset:
0x01
Reset:
0x00
Access:
PAC Write-Protection
Bit76543210
SLEEPMODE[2:0]
AccessR/WR/WR/W
Reset000

Bits 2:0 – SLEEPMODE[2:0]: Sleep Mode

Sleep Mode

Note: A small latency happens between the store instruction and actual writing of the SLEEPCFG register due to bridges. Software has to make sure the SLEEPCFG register reads the wanted value before issuing Wait For Interrupt (WFI) instruction.
Value Name Definition
0x0 Reserved Reserved
0x1 Reserved Reserved
0x2 IDLE CPU, AHBx and APBx clocks are OFF
0x3 Reserved Reserved
0x4 STANDBY ALL clocks are OFF, unless requested by sleepwalking peripheral
0x5 - 0x7 Reserved Reserved