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Power, Reset, and Clock Management
8.1.12.1.3 CM_PER_L4FW_CLKSTCTRL Register (offset = 8h) [reset = 102h]
CM_PER_L4FW_CLKSTCTRL is shown in Figure 8-25 and described in Table 8-32.
This register enables the domain power state transition. It controls the SW supervised clock domain state
transition between ON-ACTIVE and ON-INACTIVE states. It also hold one status bit per clock input of the
domain.
Figure 8-25. CM_PER_L4FW_CLKSTCTRL 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 Reserved Reserved CLKACTIVITY_L4FW
_GCLK
R-0h R-0h R-0h R-1h
7 6 5 4 3 2 1 0
Reserved CLKTRCTRL
R-0h R/W-2h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 8-32. CM_PER_L4FW_CLKSTCTRL Register Field Descriptions
Bit Field Type Reset Description
31-26 Reserved R 0h
25-11 Reserved R 0h
10 Reserved R 0h
9 Reserved R 0h
8 CLKACTIVITY_L4FW_GC R 1h
This field indicates the state of the L4FW clock in the domain.
LK
0x0 = Inact : Corresponding clock is gated
0x1 = Act : Corresponding clock is active
7-2 Reserved R 0h
1-0 CLKTRCTRL R/W 2h
Controls the clock state transition of the L4 Firewall clock domain.
0x0 = NO_SLEEP : NO_SLEEP: Sleep transition cannot be initiated.
Wakeup transition may however occur.
0x1 = SW_SLEEP : SW_SLEEP: Start a software forced sleep
transition on the domain.
0x2 = SW_WKUP : SW_WKUP: Start a software forced wake-up
transition on the domain.
0x3 = Reserved
553
SPRUH73H–October 2011–Revised April 2013 Power, Reset, and Clock Management (PRCM)
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