LM3S2776 Datasheet, PDF (727/785 Pages) Texas Instruments – Stellaris® LM3S2776 Microcontroller

Stellaris® LM3S2776 Microcontroller
21.2.4 Reset
Table 21-14. Reset Characteristics
Parameter
No.
Parameter Parameter Name
Min Nom
Max
Unit
R1
V_TH
Reset threshold
-
2.0
-
V
R2
V_BTH
Brown-Out threshold
2.85
2.9
2.95
V
R3
T_POR
Power-On Reset timeout
-
10
-
ms
R4
T_BOR
Brown-Out timeout
-
500
-
µs
R5
T_IRPOR
Internal reset timeout after POR
R6
T_IRBOR
Internal reset timeout after BOR^a
6
-
11
ms
0
-
1
µs
R7
T_IRHWR
Internal reset timeout after hardware reset
0
-
1
ms
(RST pin)
R8
T_IRSWR
Internal reset timeout after software-initiated 2.5
-
20
µs
system reset ^a
R9
T_IRWDR
Internal reset timeout after watchdog reset^a
2.5
-
20
µs
Supply voltage (V_DD) rise time (0V-3.3V),
-
-
100
ms
power on reset
R10
T_VDDRISE
Supply voltage (V_DD) rise time (0V-3.3V),
-
-
250
µs
waking from hibernation
R11
a. 20 * t _{MOSC_per}
T_MIN
Minimum RST pulse width
2
-
-
µs
Figure 21-4. External Reset Timing (RST)
RST
/Reset
(Internal)
R11
R7
Figure 21-5. Power-On Reset Timing
R1
VDD
/POR
(Internal)
/Reset
(Internal)
R3
R5
November 17, 2011
727
Texas Instruments-Production Data