TMS320DM355 datasheet(85/153 Pages) TI

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TMS320DM355

Digital Media System-on-Chip (DMSoC)

SPRS463 – 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's Guide 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's can 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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Detailed Device Description

TMS320DM355 bảng dữ liệu(PDF) 85 Page - Texas Instruments