Sony CXD5602 User Manual page 140

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1*
The Bits not listed are Reserved.
3.4.4 Power Supply Control Flow
3.4.4.1 Basic Flow of Power Supply Control
The following describes the basic flow of power supply control. Make sure to control the power domain and
SRAM in accordance with the basic flow of power supply control. In the case of Analog circuits, individual
settings are required for each analog circuit before and after the basic flow of power supply control. For details on
the control flow including individual settings, refer to Section 3.4.4.1.1 through Section 3.4.4.1.6.
1. Power supply control On/Off (/Retention) settings
PWD_CTL=0x40004000 (Example: PWD_APP_AUD=ON)
Refer to Table PMU (Power Management Unit)-47 and make the register settings of the desired power
supply. For the setting restrictions, refer to the power supply control restrictions. For an actual example
of power supply control, refer to Section 3.4.5.1.
Table PMU (Power Management Unit)-47 Power Supply Control Setting Values
Domain Power name
name
Always PWD_PMU
ON
SRAM
(Backup SRAM 32 KByte)
SRAM
(Backup SRAM 32 KByte)
RCOSC
XOSC
SYSPLL
Sensor PWD_SCU
Domain
SRAM
(FIFO 8 KByte)
When turning ON the SYSPLL, also turn ON the XOSC.
When turning OFF the XOSC, also turn OFF the SYSPLL.

To turn ON the XOSC ON, SYSPLL:
ANA_PW_CTL=0x00060006

To turn OFF the XOSC OFF, SYSPLL:
ANA_PW_CTL=0x00060000
Register name
－
TOP_SCU_RAMMODE_SEL
TOP_SCU_RAMMODE_SEL
ANA_PW_CTL
ANA_PW_CTL
ANA_PW_CTL
PWD_CTL
TOP_SCU_RAMMODE_SEL
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CXD5602 User Manual
Off Control On Control
Setting Setting
Value Value
－ －
0x01000000 0x01030000
0x02000000 0x020C0000
0x00010000 0x00010001
0x00020000 0x00020002
0x00040000 0x00040004
0x00010000 0x00010001
0x00000100 0x00000103
Retention
Control
Setting Value
－
0x01010000
0x02040000
－
－
－
－
0x00000101