Clear PM_PWSTCTRL_IVA2
POWERSTATE to 0x0 (off mode)
Clear PM_PWSTCTRL_IVA2
POWERSTATE to 0x0 (off mode)
Set CM_CLKSTCTRL_IVA2
CLKTRCTRL_IVA2 to 0x1
(software sleep transition)
Set CM_CLKSTCTRL_IVA2
CLKTRCTRL_IVA2 to 0X3
(hardware auto sleep transition)
Set register PM_WKDEP_IVA2 to 0x0
to remove power domain dependencies
Set register PM_WKDEP_IVA2 to 0x0
to remove power domain dependencies
Clear CM_FCLKEN_IVA2 EN_IVA2 to 0x0
(IVA2_CLK is disabled)
IVA2 power off
force mode (MPU)
IVA2 power off
auto mode (MPU or IVA2)
IVA2 is in off mode
IVA2 will be put in off mode
when IDLE instruction
is executed
iva2-046
Public Version
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IVA2.2 Subsystem Basic Programming Model
Figure 5-35. IVA2 Power Down
CAUTION
The IVA2 clock must not be stopped manually; otherwise, the WUGEN module
inside the IVA2 has no functional clock and cannot wake up the IVA
subsystem.
When the IVA2 is shut down, it can be waked up by an external event. The boot code executed after
wakeup must include at least the following steps (see
):
799
SWPU177N – December 2009 – Revised November 2010
IVA2.2 Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated