Datasheet

Active Mode
CPU Is Active
Peripheral Modules Are Active
LPM0
CPU Off, MCLK Off,
SMCLK On, ACLK On
CPUOFF = 1
SCG0 = 0
SCG1 = 0
CPUOFF = 1
SCG0 = 1
SCG1 = 0
LPM2
CPU Off, MCLK Off, SMCLK
Off, DCO Off, ACLK On
CPUOFF = 1
SCG0 = 0
SCG1 = 1
LPM3
CPU Off, MCLK Off, SMCLK
Off, DCO Off, ACLK On
DC Generator Off
LPM4
CPU Off, MCLK Off, DCO
Off, SMCLK Off,
ACLK Off
DC Generator Off
CPUOFF = 1
OSCOFF = 1
SCG0 = 1
SCG1 = 1
RST/NMI
NMI Active
PUC
RST
/NMI is Reset Pin
WDT is Active
POR
WDT Active,
Security Key Violation
WDT
Time Expired, Overflow
WDTIFG = 1
WDTIFG = 1
RST/NMI
Reset Active
SVS_POR
WDTIFG = 0
LPM1
CPU Off, MCLK Off,
DCO off, SMCLK On,
ACLK On
DC Generator Off if DCO
not used for SMCLK
CPUOFF = 1
SCG0 = 1
SCG1 = 1
www.ti.com Operating Modes
Figure 2-9. Operating Modes For Basic Clock System
Table 2-2. Operating Modes For Basic Clock System
SCG1 SCG0 OSCOFF CPUOFF Mode CPU and Clocks Status
0 0 0 0 Active CPU is active, all enabled clocks are active
0 0 0 1 LPM0 CPU, MCLK are disabled, SMCLK, ACLK are active
CPU, MCLK are disabled. DCO and DC generator are
0 1 0 1 LPM1 disabled if the DCO is not used for SMCLK. ACLK is
active.
CPU, MCLK, SMCLK, DCO are disabled. DC generator
1 0 0 1 LPM2
remains enabled. ACLK is active.
CPU, MCLK, SMCLK, DCO are disabled. DC generator
1 1 0 1 LPM3
disabled. ACLK is active.
1 1 1 1 LPM4 CPU and all clocks disabled
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SLAU144J–December 2004–Revised July 2013 System Resets, Interrupts, and Operating Modes
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