LM3S5G51 Datasheet, PDF (305/1266 Pages) Texas Instruments – Stellaris® LM3S5G51 Microcontroller

Stellaris^® LM3S5G51 Microcontroller
Bit/Field
7
6
5
4
3
2
Name
VABORT
CLK32EN
LOWBATEN
PINWEN
RTCWEN
CLKSEL
Type
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
Description
Power Cut Abort Enable
Value
1
0
Description
When this bit is set, the battery voltage level is checked
before entering hibernation. If V_BAT is less than V_LOWBAT,
the microcontroller does not go into hibernation.
The microcontroller goes into hibernation regardless of the
voltage level of the battery.
0
Clocking Enable
This bit must be enabled to use the Hibernation module.
Value
1
0
Description
The Hibernation module clock source is enabled.
The Hibernation module clock source is disabled.
0
Low Battery Monitoring Enable
Value
1
0
Description
Low battery voltage detection is enabled. When this bit is
set, the battery voltage level is checked before entering
hibernation. If V_BAT is less than V_LOWBAT, the LOWBAT bit
in the HIBRIS register is set.
Low battery monitoring is disabled.
0
External WAKE Pin Enable
Value
1
0
Description
An assertion of the WAKE pin takes the microcontroller
out of hibernation.
The status of the WAKE pin has no effect on hibernation.
0
RTC Wake-up Enable
Value
1
0
Description
An RTC match event (the value the HIBRTCC register
matches the value of the HIBRTCM0 or HIBRTCM1
register) takes the microcontroller out of hibernation.
An RTC match event has no effect on hibernation.
0
Hibernation Module Clock Select
Value
1
0
Description
Use raw output. Use this value for a 32.768-kHz
oscillator.
Use Divide-by-128 output. Use this value for a
4.194304-MHz crystal.
January 23, 2012
305
Texas Instruments-Production Data