TMS320C6454

Fixed-Point Digital Signal Processor

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SPRS311A –APRIL 2006 –REVISED DECEMBER 2006

5.4 Power-Down Control

The C64x+ Megamodule supports the ability to power-down various parts of the C64x+ Megamodule. The power-down controller (PDC) of the C64x+ Megamodule can be used to power down L1P, the cache control hardware, the CPU, and the entire C64x+ Megamodule. These power-down features can be used to design systems for lower overall system power requirements.

NOTE

The C6454 does not support power-down modes for the L2 memory at this time.

More information on the power-down features of the C64x+ Megamodule can be found in the TMS320C64x+ Megamodule Reference Guide (literature number SPRU871).

5.5 Megamodule Resets

Table 5-2shows the reset types supported on the C6454 device and they affect the resetting of the Megamodule, either both globally or just locally.

Table 5-2. Megamodule Reset (Global or Local)

 

GLOBAL

LOCAL

RESET TYPE

MEGAMODULE

MEGAMODULE

 

RESET

RESET

Power-On Reset

Y

Y

Warm Reset

Y

Y

System Reset

Y

Y

CPU Reset

N

Y

For more detailed information on the global and local Megamodule resets, see the TMS320C64x+ Megamodule Reference Guide (literature number SPRU871). And for more detailed information on device resets, see Section 7.6, Reset Controller.

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C64x+ Megamodule

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Texas Instruments TMS320C6454 warranty Power-Down Control, Megamodule Resets, Megamodule Reset Global or Local