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10.4 Register Map
The offset register address is relative to the registers base address.
Offset
0x000
0x004
0x008
0x024
Name
EMU_CTRL
EMU_MEMCTRL
EMU_LOCK
EMU_AUXCTRL
Type
RW
RW
RW
RW
Description
Control Register
Memory Control Register
Configuration Lock Register
Auxiliary Control Register
10.5 Register Description
10.5.1 EMU_CTRL - Control Register
Offset
0x000
Reset
Access
Name
Bit Position
Bit
Name
Reset
Access
Description
31:4
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
3:2
EM4CTRL
0x0
RW
Energy Mode 4 Control
This register is used to enter Energy Mode 4, in which the device only wakes up from an external pin reset, from a power cycle, or
EM4 wakeup reset request. Energy Mode 4 is entered when the EM4 sequence is written to this bitfield.
1
EM2BLOCK
0
RW
Energy Mode 2 Block
This bit is used to prevent the MCU to enter Energy Mode 2 or lower.
0
EMVREG
0
RW
Energy Mode Voltage Regulator Control
Control the voltage regulator in low energy modes 2 and 3.
Value
0
1
Mode
REDUCED
FULL
Description
Reduced voltage regulator drive strength in EM2 and EM3.
Full voltage regulator drive strength in EM2 and EM3.
10.5.2 EMU_MEMCTRL - Memory Control Register
Offset
0x004
Reset
Access
Name
Bit Position
Bit
Name
Reset
Access
Description
31:3
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
2011-04-12 - d0001_Rev1.10
89
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