Power Mode Status Register (Smc_Pmstat); Functional Description; Power Mode Transitions - NXP Semiconductors MKL27Z128VFM4 Reference Manual

Functional description

14.4.4 Power Mode Status register (SMC_PMSTAT)

PMSTAT is a read-only, one-hot register which indicates the current power mode of the
system.
This register is reset on Chip POR not VLLS and by reset types
that trigger Chip POR not VLLS. It is unaffected by reset types
that do not trigger Chip POR not VLLS. See the Reset section
details for more information.
Address: 4007_E000h base + 3h offset = 4007_E003h
Bit 7
Read
Write
Reset
0
Field
PMSTAT Power Mode Status
NOTE: When debug is enabled, the PMSTAT will not update to STOP or VLPS
NOTE: When a PSTOP mode is enabled, the PMSTAT will not update to STOP or VLPS
0000_0001 Current power mode is RUN.
0000_0010 Current power mode is STOP.
0000_0100 Current power mode is VLPR.
0000_1000 Current power mode is VLPW.
0001_0000 Current power mode is VLPS.
0010_0000 Current power mode is LLS.
0100_0000 Current power mode is VLLS.
1000_0000 Reserved
14.5 Functional description

14.5.1 Power mode transitions

The following figure shows the power mode state transitions available on the chip. Any
reset always brings the MCU back to the normal RUN state.
230
NOTE
6 5
0 0
SMC_PMSTAT field descriptions
KL27 Sub-Family Reference Manual , Rev. 5, 01/2016
4 3
PMSTAT
0 0
Description
2 1
0 0
Freescale Semiconductor, Inc.
0
1