104
C66x CorePac
Copyright 2012 Texas Instruments Incorporated
SPRS689D—March 2012
Multicore Fixed and Floating-Point System-on-Chip
TMS320C6670
5.4 Power-Down Control
The C66x CorePac supports the ability to power-down various parts of the CorePac. The power-down controller
(PDC) of the CorePac can be used to power down L1P, the cache control hardware, the DSP, and the entire CorePac.
These power-down features can be used to design systems for lower overall system power requirements.
Note—
The C6670 does not support power-down modes for the L2 memory at this time.
More information on the power-down features of the C66x CorePac can be found in the
C66x CorePac Reference
Guide
2.9 ‘‘Related Documentation from Texas Instruments’’ on page 66
5.5 CorePac Revision
The version and revision of the C66x CorePac can be read from the CorePac Revision ID Register (MM_REVID)
located at address 0181 2000h. The MM_REVID register is shown in
and described in
. The C66x
CorePac revision is dependant on the silicon revision being used.
5.6 C66x CorePac Register Descriptions
See the
C66x CorePac User Guide
in
2.9 ‘‘Related Documentation from Texas Instruments’’ on page 66
for register
offsets and definitions.
Figure 5-5
CorePac Revision ID Register (MM_REVID)
31
16
15
0
VERSION
REVISION
R-n
R-n
Legend: R = Read only; R/W = Read/Write; -
n
= value after reset
Table 5-2
CorePac Revision ID Register (MM_REVID) Field Descriptions
Bit
Name
Value
Description
31-16
VERSION
xxxxh
Version of the C66x CorePac implemented on the device will depend on the silicon being used.
15-0
REVISION
0000h
Revision of the C66x CorePac version implemented on this device.
End of Table 5-2
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