SM320C6472-HIREL Datasheet, PDF (99/264 Pages) Texas Instruments – SM320C6472 Fixed-Point Digital Signal Processor

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SM320C6472-HiRel
SPRS696B – SEPTEMBER 2010 – REVISED OCTOBER 2010
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 C6472 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+ DSP Megamodule Reference Guide (literature number SPRU871).
5.5 Megamodule Resets
Table 5-4 shows the reset types supported on the C6472 device and they affect the resetting of the
Megamodule, either both globally or just locally.
Table 5-4. Megamodule Reset (Global or Local)
RESET TYPE
Power-On Reset
Warm Reset
System Reset
CPU Reset
GLOBAL
MEGAMODULE
RESET
Y
Y
Y
N
LOCAL
MEGAMODULE
RESET
Y
Y
Y
Y
For more detailed information on the global and local Megamodule resets, see the TMS320C64x+ DSP
Megamodule Reference Guide (literature number SPRU871). For more detailed information on device
resets, see Section 7.7, Reset Controller.
Copyright © 2010, Texas Instruments Incorporated
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