
WKUP modules
DPLL2 domain
DPLL1 domain
VDD1 voltage domain
VDD2 voltage domain
MPU domain
IVA DOMAIN
MPU SS
MPU CORE
IVA2.2 SS
IVA2.2 CORE
NEON domain
ARM CORE
DPLL1
DPLL2
CORE domain
Logic
Array
NEON domain
ARM CORE
CAM domain
CAM
Logic
Array
DSS domain
DSS
Logic
Array
USBHOST domain
USB HOST
Logic
Array
DPLL4 domain
DPLL3 domain
DPLL3
DPLL4
DPLL5 domain
DPLL5
CAM SRAM
DSS SRAM
USBHOST SRAM
Logic
Array
IVA SRAM
MPU SRAM
WKUP domain
VDD5 voltage domain
VDDADAC
voltage domain
VDD3 voltage domain
VDD4
voltage domain
prcm-073
V
DDPLL
vol
tag
edo
mai
n
V
DDPLL_PER
vol
tag
edo
mai
n
PER domain
PER
Logic
Array
SGX domain
SGX
Logic
Array
PER SRAM
SGX SRAM
CORE domain
CORE
Logic
Array
CORE SRAM
Public Version
PRCM Functional Description
www.ti.com
Figure 3-78. Overview of Device Voltage Domains
The device is split into voltage domains:
•
Three voltage domains for logic (VDD1, VDD2, and VDD3)
•
Two voltage domains for memory (VDD4 and VDD5)
•
Two voltage domains for PLLs and analog cells (VDDPLL and VDDPLL_PER)
•
Voltage domain for the I/Os
This partition of the voltage domains ensures independent voltage control of each voltage domain through
dedicated SMPS or LDO. Functionally, however, voltage control of a voltage domain may depend on the
voltage level of another voltage domain; for example, VDD1 voltage-level control may depend on the
VDD2 voltage level.
shows the voltage dependency between domains.
is an overview of the device voltage sources and their controls. The PRM directly manages
the following voltage sources:
•
VDD1: Processor voltage
•
VDD2: CORE voltage
•
VDD3: Wake-up voltage
372
Power, Reset, and Clock Management
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated