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PRCM Register Manual
Table 3-334. PM_PWSTCTRL_MPU
Address Offset
0x0000 00E0
Physical Address
0x4830 69E0
Instance
MPU_PRM
Description
This register controls the MPU domain power state transition.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
RESERVED
RESERVED
POWERSTATE
MEMORYCHANGE
L2CACHEONSTATE
L2CACHERETSTATE
LOGICL1CACHERETSTATE
Bits
Field Name
Description
Type
Reset
31:18
RESERVED
Write 0s for future compatibility. Read returns 0.
R
0x0000
17:16
L2CACHEONSTATE
L2 Cache memory state when domain is ON; Other
RW
0x3
enums: Reserved
0x0: L2 Cache memory is OFF when domain is ON.
0x1: Reserved
0x2: Reserved
0x3: L2 Cache memory is ON when domain is ON.
15:9
RESERVED
Write 0s for future compatibility. Read returns 0.
R
0x00
8
L2CACHERETSTATE
L2 Cache memory state when domain is RETENTION
RW
0x1
0x0: L2 Cache memory is OFF when domain is in
RETENTION state.
0x1: L2 Cache memory is retained when domain is in
RETENTION state.
7:4
RESERVED
Write 0s for future compatibility. Read returns 0.
R
0x0
3
MEMORYCHANGE
Memory change control in ON state
RW
0x0
0x0: Disable memory change
0x1: Enable memory change state in ON state. This bit is
automaticaly cleared when memory state is effectively
changed.
2
LOGICL1CACHERETSTATE
Logic and L1 Cache state when domain is RETENTION
RW
0x1
0x0: Logic and L1 Cache are OFF when domain is in
RETENTION state.
0x1: Logic and L1 Cache are retained when domain is in
RETENTION state.
1:0
POWERSTATE
Power state control
RW
0x3
0x0: OFF state
0x1: RETENTION state
0x2: Reserved
0x3: ON state
573
SWPU177N – December 2009 – Revised November 2010
Power, Reset, and Clock Management
Copyright © 2009–2010, Texas Instruments Incorporated