Information

14.3.3 VLLS Control Register (SMC_VLLSCTRL)
The VLLSCTRL register selects which VLLSx mode is entered if STOPM=VLLS and
controls power to FlexRAM during VLLS2.
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: SMC_VLLSCTRL is 4007_E000h base + 2h offset = 4007_E002h
Bit 7 6 5 4 3 2 1 0
Read 0
PORPO
0 0
VLLSM
Write
Reset
0 0 0 0 0 0 1 1
SMC_VLLSCTRL field descriptions
Field Description
7–6
Reserved
This read-only field is reserved and always has the value zero.
5
PORPO
POR Power Option
This bit controls whether the POR detect circuit is enabled in VLLS0 mode.
0 POR detect circuit is enabled in VLLS0
1 POR detect circuit is disabled in VLLS0
4
Reserved
This read-only field is reserved and always has the value zero.
3
Reserved
This read-only field is reserved and always has the value zero.
2–0
VLLSM
VLLS Mode Control.
This field controls which VLLS sub-mode to enter if STOPM=VLLS.
000 VLLS0
001 VLLS1
010 VLLS2
011 VLLS3
100 Reserved
101 Reserved
110 Reserved
111 Reserved
Chapter 14 System Mode Controller
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 267