Multicore Fixed and Floating-Point System-on-Chip
Copyright 2012 Texas Instruments Incorporated
TMS320C6670 Peripheral Information and Electrical Specifications
117
SPRS689D—March 2012
TMS320C6670
7.3 Power Sleep Controller (PSC)
The Power Sleep Controller (PSC) controls overall device power by turning off unused power domains and gating
off clocks to individual peripherals and modules. The PSC provides the user with an interface to control several
important power and clock operations.
For information on the Power Sleep Controller, see the
Power Sleep Controller (PSC) for KeyStone Devices
User
Guide in
2.9 ‘‘Related Documentation from Texas Instruments’’ on page 66
.
7.3.1 Power Domains
The device has several power domains that can be turned on for operation or off to minimize power dissipation. The
global power/sleep controller (GPSC) is used to control the power gating of various power domains.
shows the TMS320C6670 power domains.
Table 7-6
Power Domains
Domain
Block(s)
Note
Power Connection
0
Most peripheral logic
Cannot be disabled
Always on
1
Per-core TETB and system TETB
RAMs can be powered down
Software control
2
Network Coprocessor
Logic can be powered down
Software control
3
PCIe
Logic can be powered down
Software control
4
SRIO
Logic can be powered down
Software control
5
HyperLink
Logic can be powered down
Software control
6
Reserved
Reserved
Reserved
7
MSMC RAM
MSMC RAM can be powered down
Software control
8
RAC_A, RAC_B, and TAC
Logic can be powered down
Software control
9
FFTC_A and FFTC_B
Logic can be powered down
Software control
10
AIF2
RAMs can be powered down
Software control
11
TCP3d_A
RAMs can be powered down
Software control
12
VCP2_B, VCP2_C, and VCP2_D
RAMs can be powered down
Software control
13
C66x Core 0, L1/L2 RAMs
L2 RAMs can sleep
Software control via C66x CorePac. For details, see
the C66x CorePac Reference Guide.
14
C66x Core 1, L1/L2 RAMs
L2 RAMs can sleep
15
C66x Core 2, L1/L2 RAMs
L2 RAMs can sleep
16
C66x Core 3, L1/L2 RAMs
L2 RAMs can sleep
17
TCP3d_B
RAMs can be powered down
Software control
18
BCP, FFTC_C, and TCP3d_C
Logic can be powered down for BCP,
FFTC_C, and RAMs can be powered down
for TCP3d_C
Software control
End of Table 7-6
Summary of Contents for TMS320C6670
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