Stop Control Register (Smc_Stopctrl) - NXP Semiconductors MKL27Z128VFM4 Reference Manual

Memory map and register descriptions
Field
7 This field is reserved.
Reserved This bit is reserved for future expansion and should always be written zero.
6–5 Run Mode Control
RUNM
When written, causes entry into the selected run mode. Writes to this field are blocked if the protection
level has not been enabled using the PMPROT register.
NOTE: RUNM may be set to VLPR only when PMSTAT=RUN. After being written to VLPR, RUNM
00 Normal Run mode (RUN)
01 Reserved
10 Very-Low-Power Run mode (VLPR)
11 Reserved
4 This field is reserved.
Reserved This read-only field is reserved and always has the value 0.
3 Stop Aborted
STOPA
When set, this read-only status bit indicates an interrupt occured during the previous stop mode entry
sequence, preventing the system from entering that mode. This field is cleared by reset or by hardware at
the beginning of any stop mode entry sequence and is set if the sequence was aborted.
0 The previous stop mode entry was successful.
1 The previous stop mode entry was aborted.
STOPM Stop Mode Control
When written, controls entry into the selected stop mode when Sleep-Now or Sleep-On-Exit mode is
entered with SLEEPDEEP=1 . Writes to this field are blocked if the protection level has not been enabled
using the PMPROT register. After any system reset, this field is cleared by hardware on any successful
write to the PMPROT register.
NOTE: When set to VLLSx, the VLLSM field in the STOPCTRL register is used to further select the
NOTE: When set to STOP, the PSTOPO bits in the STOPCTRL register can be used to select a Partial
000 Normal Stop (STOP)
001 Reserved
010 Very-Low-Power Stop (VLPS)
011 Low-Leakage Stop (LLS)
100 Very-Low-Leakage Stop (VLLSx)
101 Reserved
110 Reseved
111 Reserved

14.4.3 Stop Control Register (SMC_STOPCTRL)

The STOPCTRL register provides various control bits allowing the user to fine tune
power consumption during the stop mode selected by the STOPM field.
228
SMC_PMCTRL field descriptions
should not be written back to RUN until PMSTAT=VLPR.
particular VLLS submode which will be entered.
Stop mode if desired.
KL27 Sub-Family Reference Manual , Rev. 5, 01/2016
Description
Freescale Semiconductor, Inc.