Power, Reset, and Clock Management
8.1.13.6.1 PM_RTC_PWRSTCTRL Register (offset = 0h) [reset = 4h]
PM_RTC_PWRSTCTRL is shown in
and described in
.
This register controls the RTC power state to reach upon mpu domain sleep transition
Figure 8-187. PM_RTC_PWRSTCTRL Register
31
30
29
28
27
26
25
24
Reserved
Reserved
R-0h
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
LowPowerStateChang
Reserved
LogicRETState
Reserved
e
R-0h
R/W-0h
R-0h
R/W-1h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 8-207. PM_RTC_PWRSTCTRL Register Field Descriptions
Bit
Field
Type
Reset
Description
31-26
Reserved
R
0h
25-16
Reserved
R
0h
15-5
Reserved
R
0h
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
Reserved
R
0h
2
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.
1-0
Reserved
R
0h
737
SPRUH73H – October 2011 – Revised April 2013
Power, Reset, and Clock Management (PRCM)
Copyright © 2011–2013, Texas Instruments Incorporated