Power Domain Management; Rtc Domain Management - Texas Instruments OMAP5912 Reference Manual

Power Management User Services
3.5

Power Domain Management

3.5.1

RTC Domain Management

90 Power Management
T2: Idle request from OMAP3.2, externals clocks not requested, and deep
sleep authorized
T3: No wake-up request from OMAP3.2 nor from external peripherals, and
deep sleep authorized
T4: External clock request
T5: Idle request from OMAP3.2 but either at least one active external clock
request or deep sleep transition not authorized
T6: Either wake-up request from OMAP3.2 or from external peripherals
The RTC power domain allows the user to achieve minimum consumption
during the OFF state of OMAP5912.
In the OFF state only the RTC power domain OMAP 5912 is supplied. The
DSP and MPU domains are switched off (all power supplies associated equal
0 volts).
The RTC power domain supplies only real-time clock functions and associated
reset controls.
The user must control the ON_OFF signal during MPU and DSP domain
switch-off and switch-on.
Figure 28 describes the OFF state of OMAP5912, and Figure 29 describes the
ON state.
SPRU753A