Texas Instruments TMS320DM355 warranty Power Management Features Description

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TMS320DM355

Digital Media System-on-Chip (DMSoC)

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SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

to static current leakage and occurs regardless of the clock rate. Leakage, or standby power, is unavoidable while power is applied and scales roughly with the operating junction temperatures. Leakage power can only be avoided by removing power completely from a device or subsystem. The DM355 includes several power management features which are briefly described in Table 12-1. Refer to the ARM Subsystem User'sGuide for more information on power management.

	Table 3-17. Power Management Features
Power Management Features	Description
	Clock Management
Module clock disable	Module clocks can be disabled to reduce switching power
Module clock frequency scaling	Module clock frequency can be scaled to reduce switching power
PLL power-down	The PLLs can be powered-down when not in use to reduce
	switching power
	ARM Sleep Mode
ARM Wait-for-Interrupt sleep mode	Disable ARM clock to reduce active power
	System Sleep Modes
Deep Sleep mode	Stop all device clocks and power down internal oscillators to reduce
	active power to a minimum. Registers and memory are preserved.
	I/O Management
USB Phy power-down	The USB Phy can be powered-down to reduce USB I/O power
DAC power-down	The DAC'scan be powered-down to reduce DAC power
DDR self-refresh and power down	The DDR / mDDR device can be put into self-refresh and power
	down states

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