Vdd
Varray
Memory array
power switch
Memory
Logic
Memory
logic
Power domain
Memory logic
power switch
Logic power
switch
PRCM
PM
Flip-flop
logic
Logic power
switch
Memory
array
Memory bank
prcm-008
Memory
array
Flip-flop
logic
Power, Reset, and Clock Management
Figure 8-4. Generic Power Domain Architecture
To minimize device power consumption, the modules are grouped into power domains. A power domain
can be split into a logic area and a memory area.
Table 8-10. States of a Memory Area in a Power Domain
State
Description
ON
The memory array is powered and fully functional
OFF
The memory array is powered down
Table 8-11. States of a Logic Area in a Power Domain
State
Description
ON
Logic is fully powered
OFF
Logic power switches are off. All the logic (DFF) is lost
507
SPRUH73H – October 2011 – Revised April 2013
Power, Reset, and Clock Management (PRCM)
Copyright © 2011–2013, Texas Instruments Incorporated