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3.4.3
Register Descriptions
3.4.3.1 Register Settings
Within the power supply control register (PWD_CTL, *_RAMMODE_SEL, ANA_PW_CTL), there is a Write
Enable for each power supply. Power supply control is enabled only for power supplies with Write Enable set to
"1", allowing the control of the desired power supply without performing read-modify-write.
When making the settings for power supply control, make sure to use Word access to simultaneously perform
write operations to the bits of Write Enable and each power supply's setting (ON/OFF). Do not use Byte or half
word access.
3.4.3.2 Power Supply Control (Power Domain)
Table PMU (Power Management Unit)-37 and Table PMU (Power Management Unit)-38 show the registers
related to power supply control of the power domains. For the control method, refer to the control flow described
in Section 3.4.4.1.
Table PMU (Power Management Unit)-37 Power Supply Control Settings (Power Domain)
Address
Register Name
0x04100000
PWD_CTL
Bit Field Name
Type
WEN
RO
WO
WO
WO
RO
WO
WO
WO
RO
WO
WO
WO
RO
WO
Reserved
RO
PWD_APP_AUD
RW
PWD_GNSS
RW
PWD_GNSS_ITP
RW
－128/1010－
Bit
Initial
Description
Value
[31]
0
Reserved
[30]
0
Write Enable (PWD_APP_AUD)
[29]
0
Write Enable (PWD_GNSS)
[28]
0
Write Enable (PWD_GNSS_ITP)
[27]
0
Reserved
[26]
0
Write Enable (PWD_APP_SUB)
[25]
0
Write Enable (PWD_APP_DSP)
[24]
0
Write Enable (PWD_APP)
[23]
0
Reserved
[22]
0
Write Enable (PWD_SYSIOP_SUB)
[21]
0
Write Enable (PWD_SYSIOP)
[20]
0
Write Enable (PWD_CORE)
[19:17]
0
Reserved
[16]
0
Write Enable (PWD_SCU)
[15]
0
Reserved
[14]
0
Power supply control setting
1: ON, 0: OFF
[13]
0
[12]
0
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