TM4C1231D5PZ Datasheet, PDF (482/1161 Pages) Texas Instruments – Universal Asynchronous Receiver/Transmitter Run Mode Clock

Hibernation Module
Bit/Field
4
3
2
1
0
Name
PINWEN
RTCWEN
reserved
HIBREQ
RTCEN
Type
R/W
R/W
RO
R/W
R/W
Reset
0
Description
External Wake Pin Enable
Value
0
1
Description
The status of the WAKE pin has no effect on hibernation.
An assertion of the WAKE pin takes the microcontroller
out of hibernation.
0
RTC Wake-up Enable
Value
0
1
Description
An RTC match event has no effect on hibernation.
An RTC match event (the value the HIBRTCC register
matches the value of the HIBRTCM0 register and the value
of the RTCSSC field matches the RTCSSM field in the
HIBRTCSS register) takes the microcontroller out of
hibernation.
0
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0
Hibernation Request
Value
0
1
Description
No hibernation request.
Set this bit to initiate hibernation.
After a wake-up event, this bit is automatically cleared by hardware.
A hibernation request is ignored if both the PINWEN and RTCWEN bits
are clear.
A hibernation request is held off if the BATCHK bit is set.
0
RTC Timer Enable
Value
0
1
Description
The Hibernation module RTC is disabled.
The Hibernation module RTC is enabled.
482
July 16, 2013
Texas Instruments-Production Data