LM3S1D26 Datasheet, PDF (763/805 Pages) Texas Instruments – Stellaris® LM3S1D26 Microcontroller

Stellaris^® LM3S1D26 Microcontroller
Table 20-14. Supported MOSC Crystal Frequencies (continued)
Crystal Frequency (MHz) Not Using the PLL
Crystal Frequency (MHz) Using the PLL
4.9152 MHz
5 MHz
5.12 MHz
6 MHz (reset value)
6.144 MHz
7.3728 MHz
8 MHz
8.192 MHz
10.0 MHz
12.0 MHz
12.288 MHz
13.56 MHz
14.31818 MHz
16.0 MHz
16.384 MHz
20.8.6 System Clock Specification with ADC Operation
20.9
20.10
Table 20-15. System Clock Characteristics with ADC Operation
Parameter Parameter Name
Min
Nom
Max
Unit
F_sysadc
System clock frequency when the ADC
15.9952
module is operating (when PLL is bypassed).^a
16
16.0048
MHz
a. Clock frequency (plus jitter) must be stable inside specified range. ADC can be clocked from the PLL or directly from an
external clock source, as long as frequency absolute precision is inside specified range.
Sleep Modes
Table 20-16. Sleep Modes AC Characteristics^a
Parameter
No
Parameter
Parameter Name
Min Nom Max
T_{WAKE_S}
Time to wake from interrupt in sleep mode, not -
using the PLL^b
-
2
D1
T_{WAKE_DS}
Time to wake from interrupt deep-sleep mode, -
not using the PLL^b
-
7
D2
T_{WAKE_PLL_S}
Time to wake from interrupt in sleep or
deep-sleep mode when using the PLL^b
-
-
T_READY
D3
T_{ENTER_DS} Time to enter deep-sleep mode from sleep
-
0
35^c
request
a. Values in this table assume the IOSC is the clock source during sleep or deep-sleep mode.
b. Specified from registering the interrupt to first instruction.
c. Nominal specification occurs 99.9995% of the time.
Unit
system clocks
system clocks
ms
ms
Hibernation Module
The Hibernation module requires special system implementation considerations because it is intended
to power down all other sections of its host device, refer to “Hibernation Module” on page 259.
January 22, 2012
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