Multicore Fixed and Floating-Point System-on-Chip
Copyright 2012 Texas Instruments Incorporated
TMS320C6670 Peripheral Information and Electrical Specifications
109
SPRS689D—March 2012
TMS320C6670
7 TMS320C6670 Peripheral Information and Electrical Specifications
This chapter covers the various peripherals on the TMS320C6670 device. Peripheral-specific information, timing
diagrams, electrical specifications, and register memory maps are described in this chapter.
7.1 Recommended Clock and Control Signal Transition Behavior
All clocks and control signals
must
transition between V
IH
and V
IL
(or between V
IL
and V
IH
) in a monotonic
manner.
7.2 Power Supplies
The following sections describe the proper power-supply sequencing and timing needed to properly power on the
C6670. The various power supply rails and their primary function is listed in
Table 7-1
Power Supply Rails on the TMS320C6670
Name
Primary Function
Voltage
Notes
CVDD
SmartReflex core supply voltage
0.9 - 1.1 V Variable core supply
CVDD1
Core supply voltage for memory
array
1.0 V
Fixed supply at 1.0 V
VDDT1
HyperLink SerDes termination
supply
1.0 V
Filtered version of CVDD1. Special considerations for noise. Filter is not needed if
HyperLink is not in use.
VDDT2
SGMII/SRIO/PCIE SerDes
termination supply
1.0 V
Filtered version of CVDD1. Special considerations for noise. Filter is not needed if
SGMII/SRIO/PCIE is not in use.
VDDT3
AIF SerDes termination supply
1.0 V
Filtered version of CVDD1. Special considerations for noise. Filter is not needed if AIF is
not in use.
DVDD15
1.5-V DDR3 IO supply
1.5 V
Fixed supply at 1.5 V
VDDR1
HyperLink SerDes regulator supply
1.5 V
Filtered version of DVDD15. Special considerations for noise. Filter is not needed if
HyperLink is not in use.
VDDR2
PCIE SerDes regulator supply
1.5 V
Filtered version of DVDD15. Special considerations for noise. Filter is not needed if PCIE
is not in use.
VDDR3
SGMII SerDes regulator supply
1.5 V
Filtered version of DVDD15. Special considerations for noise. Filter is not needed if
SGMII is not in use.
VDDR4
SRIO SerDes regulator supply
1.5 V
Filtered version of DVDD15. Special considerations for noise. Filter is not needed if SRIO
is not in use.
VDDR5
AIF SerDes regulator supply
1.5 V
Filtered version of DVDD15. Special considerations for noise. Filter is not needed if AIF
is not in use.
VDDR6
DVDD18
1.8-V IO supply
1.8 V
Fixed supply at 1.8 V
AVDDA1
Main PLL supply
1.8 V
Filtered version of DVDD18. Special considerations for noise.
AVDDA2
DDR3 PLL supply
1.8 V
Filtered version of DVDD18. Special considerations for noise.
AVDDA3
PASS PLL supply
1.8 V
Filtered version of DVDD18. Special considerations for noise.
VREFSSTL
0.75-V DDR3 reference voltage
0.75 V
Should track the 1.5-V supply. Use 1.5 V as source.
VSS
Ground
GND
Ground
End of Table 7-1
Summary of Contents for TMS320C6670
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