LM3S5762_14 Datasheet, PDF (254/851 Pages) Texas Instruments – Microcontroller

Hibernation Module
Bit/Field
6
5
4
3
2
1
Name
CLK32EN
LOWBATEN
PINWEN
RTCWEN
CLKSEL
HIBREQ
Type
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
Description
Clocking Enable
Value
0
1
Description
Disabled
Enabled
This bit must be enabled to use the Hibernation module. If a crystal is
used, then software should wait 20 ms after setting this bit to allow the
crystal to power up and stabilize.
Low Battery Monitoring Enable
Value
0
1
Description
Disabled
Enabled
When set, low battery voltage detection is enabled (V_BAT < V_LOWBAT).
External WAKE Pin Enable
Value
0
1
Description
Disabled
Enabled
When set, an external event on the WAKE pin will re-power the device.
RTC Wake-up Enable
Value
0
1
Description
Disabled
Enabled
When set, an RTC match event (RTCM0 or RTCM1) will re-power the
device based on the RTC counter value matching the corresponding
match register 0 or 1.
Hibernation Module Clock Select
Value
0
1
Description
Use Divide by 128 output. Use this value for a
4.194304-MHz crystal.
Use raw output. Use this value for a 32.768-kHz
oscillator.
0
Hibernation Request
Value
0
1
Description
Disabled
Hibernation initiated
After a wake-up event, this bit is cleared by hardware.
254
July 17, 2014
Texas Instruments-Production Data