Power, Reset, and Clock Management
Table 8-187. PM_PER_PWRSTCTRL Register Field Descriptions (continued)
Bit
Field
Type
Reset
Description
4
LowPowerStateChange
R/W
0h
Power state change request when domain has already performed a
sleep transition.
Allows going into deeper low power state without waking up the
power domain.
0x0 = DIS : Do not request a low power state change.
0x1 = EN : Request a low power state change. This bit is
automatically cleared when the power state is effectively changed or
when power state is ON.
3
LogicRETState
R/W
1h
Logic state when power domain is RETENTION
0x0 = logic_off : Only retention registers are retained and remaing
logic is off when the domain is in RETENTION state.
0x1 = logic_ret : Whole logic is retained when domain is in
RETENTION state.
2
Reserved
R
0h
1-0
PowerState
R/W
3h
PER domain power state control
0x0 = OFF
0x1 = RET
0x2 = Reserved
0x3 = ON
8.1.13.3 PRM_WKUP Registers
lists the memory-mapped registers for the PRM_WKUP. All register offset addresses not
listed in
should be considered as reserved locations and the register contents should not be
modified.
Table 8-188. PRM_WKUP REGISTERS
Offset
Acronym
Register Name
Section
0h
RM_WKUP_RSTCTRL
This register controls the release of the ALWAYS ON
Domain resets.
4h
PM_WKUP_PWRSTCTRL
Controls power state of WKUP power domain
8h
PM_WKUP_PWRSTST
This register provides a status on the current WKUP
power domain state.
[warm reset insensitive]
Ch
RM_WKUP_RSTST
This register logs the different reset sources of the
ALWON domain.
Each bit is set upon release of the domain reset signal.
Must be cleared by software.
[warm reset insensitive]
715
SPRUH73H – October 2011 – Revised April 2013
Power, Reset, and Clock Management (PRCM)
Copyright © 2011–2013, Texas Instruments Incorporated