Power, Reset, and Clock Management
8.1.13.7.1 PM_GFX_PWRSTCTRL Register (offset = 0h) [reset = 60044h]
PM_GFX_PWRSTCTRL is shown in
and described in
This register controls the GFX power state to reach upon a domain sleep transition.
Figure 8-189. PM_GFX_PWRSTCTRL Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
GFX_MEM_ONState
Reserved
R-0h
R-3h
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
GFX_MEM_RETState
Reserved
LowPowerStateChang
Reserved
LogicRETState
PowerState
e
R-0h
R/W-1h
R-0h
R/W-0h
R-0h
R/W-1h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 8-210. PM_GFX_PWRSTCTRL Register Field Descriptions
Bit
Field
Type
Reset
Description
31-19
Reserved
R
0h
18-17
GFX_MEM_ONState
R
3h
GFX memory state when domain is ON.
16-7
Reserved
R
0h
6
GFX_MEM_RETState
R/W
1h
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
PowerState
R/W
0h
Power state control
0x0 = OFF : OFF State
0x1 = RET
0x2 = reserved_1
0x3 = ON : ON State
740
Power, Reset, and Clock Management (PRCM)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated