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TMS320C5515
SPRS645F – AUGUST 2010 – REVISED OCTOBER 2013
Table 5-24. RTCPMGT Register Bit Descriptions (continued)
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BIT
1
0
NAME
LDO_PD
RTCCLKOUTEN
DESCRIPTION
On-chip LDOs and Analog POR power down bit.
This bit shuts down the on-chip LDOs (ANA_LDO, DSP_LDO, and USB_LDO) and the Analog
POR. BG_PD and LDO_PD are only intended to be used when the internal LDOs supply power to
the chip. If the internal LDOs are bypassed and not used then the BG_PD and LDO_PD power
down mechanisms should not be used since POR gets powered down and the POWERGOOD
signal is not generated properly.
After this bit is asserted, the on-chip LDOs and Analog POR can be re-enabled by the WAKEUP
pin (high) or the RTC alarm interrupt. This bit keeps the Bandgap reference turned on to allow a
faster wake-up time with the expense power consumption of the Bandgap reference.
0 = On-chip LDOs and Analog POR are enabled.
1 = On-chip LDOs and Analog POR are disabled (shutdown).
Clockout output enable bit.
0 = Clock output disabled.
1 = Clock output enabled.
110
Peripheral Information and Electrical Specifications
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