Information

SMC_VLLSCTRL field descriptions (continued)
Field Description
3
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
2–0
VLLSM
VLLS Mode Control
Controls which VLLS sub-mode to enter if STOPM=VLLS.
000 Reserved
001 VLLS1
010 VLLS2
011 VLLS3
100 Reserved
101 Reserved
110 Reserved
111 Reserved
14.3.4 Power Mode Status register (SMC_PMSTAT)
PMSTAT is a read-only, one-hot register which indicates the current power mode of the
system.
NOTE
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 6 5 4 3 2 1 0
Read 0 PMSTAT
Write
Reset
0 0 0 0 0 0 0 1
SMC_PMSTAT field descriptions
Field Description
7
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
6–0
PMSTAT NOTE: When debug is enabled, the PMSTAT will not update to STOP or VLPS
000_0001 Current power mode is RUN
000_0010 Current power mode is STOP
000_0100 Current power mode is VLPR
000_1000 Current power mode is VLPW
Table continues on the next page...
Chapter 14 System Mode Controller
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
Freescale Semiconductor, Inc.
Preliminary
301
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