LM3S1816 Datasheet, PDF (757/797 Pages) Texas Instruments – Stellaris® LM3S1816 Microcontroller

Stellaris^® LM3S1816 Microcontroller
Table 20-17. Hibernation Module Battery Characteristics
Parameter
V_BAT
V_LOWBAT
Parameter Name
Battery supply voltage
Low battery detect voltage
Min
Nominal
Max
Unit
2.4
3.0
3.6
V
1.8
-
2.2
V
Table 20-18. Hibernation Module AC Characteristics
Parameter
No
Parameter
Parameter Name
Min Nom Max
H1
T_{HIB_LOW}
Internal 32.768 KHz clock reference rising edge to 20
-
-
HIB asserted
H2
T_{HIB_HIGH}
Internal 32.768 KHz clock reference rising edge to
-
30
-
HIB deasserted
H3
T_{WAKE_TO_HIB} WAKE assert to HIB desassert (wake up time),
internal Hibernation oscillator running during
hibernation^a
62
-
124
H4
T_{WAKE_TO_HIB} WAKE assert to HIB desassert (wake up time),
internal Hibernation oscillator stopped during
hibernation^a
-
-
10
H5
T_{WAKE_CLOCK} WAKE assertion time, internal Hibernation oscillator 62
-
-
running during hibernation
H6
T_{WAKE_NOCLOCK} WAKE assertion time, internal Hibernation oscillator 10
-
-
stopped during hibernation^b
H7
T_{HIB_REG_ACCESS} Time required for a write to a non-volatile register in 92
-
-
the HIB module to complete
H8
T_{HIB_TO_HIB} HIB high time between assertions
100
-
-
H9
T_{ENTER_HIB} Time to enter Hibernate mode from hibernation
-
0
35^c
request
a. Code begins executing after the time period specified by T_IRPOR following the deassertion of HIB.
b. This mode is used when the PINWEN bit is set and the RTCEN bit is clear in the HIBCTL register.
c. Nominal specification occurs 99.998% of the time.
Unit
μs
μs
μs
ms
μs
ms
μs
ms
ms
Figure 20-11. Hibernation Module Timing with Internal Oscillator Running in Hibernation
32.768 KHz
(internal)
H1
H8
H2
HIB
H3
WAKE
H5
January 21, 2012
757
Texas Instruments-Production Data