Sony CXD5602 User Manual page 116

3.4 PMU (Power Management Unit)
3.4.1 Features and Overview
The Power Management Unit (referred to as "PMU" hereinafter) is the block that performs overall power supply
control of the CXD5602.
The CXD5602 has a large power domain, which is divided into 11 domains. It performs ON control of necessary
power domains only, while performing OFF control of the unnecessary ones, thereby reducing the power
consumption.
The 11 power domains comprise a layer structure as shown in Figure PMU (Power Management Unit)-26. The
lower-layer power domains cannot be turned ON when the upper-layer power supplies are OFF. Furthermore,
PWD_GNSS can be turned ON only when both PWD_GNSS_ITP and PWD_SYSIOP are ON.
VDD_CORE
PMU
PWD_SCU
Power switch
PWD_CORE
Power switch
PWD_SYSIOP_SUB
Power switch
PWD_SYSIOP
Power switch
PWD_APP
Power switch
PWD_APP_DSP
Power switch
PWD_APP_SUB
Power switch
PWD_APP_AUD
Power switch
PWD_GNSS_ITP
Power switch
PWD_GNSS
Power switch
Figure PMU (Power Management Unit)-26 PMU and the Power Domain Layers
PWD_PMU
PWD_SCU
PWD_CORE
PWD_SYSIOP_SUB
PWD_SYSIOP
PWD_APP
PWD_APP_DSP
PWD_APP_SUB
PWD_APP_AUD
PWD_GNSS_ITP
PWD_GNSS
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CXD5602 User Manual
Always ON
Sensor
Domain
System and IOP
Domain
Application
Domain
GNSS
Domain