CXD5602 User Manual
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layer and lower layer, the Power Control Sequencer first turns ON the power supply of the upper layer
(PWD_APP) and then turns ON the power supply of the lower layer (PWD_APP_DSP). The CPU can
recognize the completion of power supply control by the interrupt.
Power Control Sequencer
OFF
PWD_APP
AHB IF
PWD_CTL
*_RAMMODE_SEL
ANA_PW_CTL
Check
Register Value
PMU_PW_CTL
PWD_CTL_STAT
*_RAMMODE_SEL_STAT
ANA_PW_CTL_STAT
PowerControl
Done
PWD_SYSIOP
PMU_INT_MASK.NOGO_CTRL
PMU_INT_MASK.DONE
to NVIC
Correct?
Yes
No
PowerControl
Start
PWD_SYSIOP
Power switch
PWD_APP
Power switch
PWD_APP_DSP
Power switch
Check
OFF
→
ON
ON
→
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
Turn ON from upper power supply
(PWD_SYSIOP first)
Turn OFF from lower power supply
(PWD_APP_DSP first)
INT
supply power to
PWD_CORE
PWD_CORE
PWD_APP_DSP
PSW_CHECK
Check result details
Power supply
setting
Power control
request
Figure PMU (Power Management Unit)-30
Overall Block Diagram of the PMU
3.4.1.4
Clock and Reset
Clock
Figure PMU (Power Management Unit)-31 shows a system diagram of the PMU’s clock.
AHB IF
Operates using the ck_ahb_gear clock which is synchronized with the System and I/O Processor.
Check Register Value, Power Control Sequencer
Operates using the RCOSC or RTC_CLK_IN. When power is supplied, the RCOSC turns ON and the
initial value of the control register
(RORTC_STAT_CLK_SEL2) selects RCOSC as the operation clock of
the PMU
. Before turning OFF the power switch of the RCOSC, make sure to switch the operation clock
of the PMU to the RTC_CLK_IN.
Summary of Contents for CXD5602
Page 1: ...CXD5602 User Manual 1 1010 CXD5602 User Manual ...
Page 36: ...CXD5602 User Manual 36 1010 2 3 Block Diagram Figure Block Diagram 1 CXD5602 Block Diagram ...
Page 144: ...CXD5602 User Manual 144 1010 GNSS_RAMMODE_SEL 0x3F000FFF SRAM GNSS BB 0 5 ON ...
Page 835: ...CXD5602 User Manual 835 1010 enable disable ...