
Multicore Fixed and Floating-Point System-on-Chip
Copyright 2012 Texas Instruments Incorporated
TMS320C6670 Peripheral Information and Electrical Specifications
111
SPRS689D—March 2012
TMS320C6670
7.2.1.1 Core-Before-IO Power Sequencing
shows the power sequencing and reset control of the TMS320C6670 for device initialization. POR may
be removed after the power has been stable for the required 100 μsec. RESETFULL must be held low for a period
after the rising edge of POR, but may be held low for longer periods if necessary. The configuration bits shared with
the GPIO pins will be latched on the rising edge of RESETFULL and must meet the setup and hold times specified.
SYSCLK1 must always be active before POR can be removed. Core-before-IO power sequencing is defined in
.
Note—
TI recommends a maximum of 100 ms between one power rail being valid, and the next power rail
in the sequence starting to ramp.
Figure 7-1
Core Before IO Power Sequencing
RESET
RESETFULL
P
O
R
CVDD
CVDD1
DVDD18
DVDD15
SYSCLK1P&N
DDRCLKP&N
RESETSTAT
Power Stabili
z
ation Phase
De
v
ice Initiali
z
ation Phase
6
5
4a
4b
2a
3
2c
GPI
O
Config
Bits
8
7
9
10
2b
1
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