LM3S9B81 Datasheet, PDF (83/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Stellaris® LM3S9B81 Microcontroller
Table 4-1. Exception Types (continued)
Exception Type
Bus Fault
Vector
Number
5
Priority^a
Description
programmable This exception is caused by a pre-fetch fault, memory access fault, and
other address/memory related faults. This exception is synchronous
when precise and asynchronous when imprecise.
Usage Fault
This fault can be enabled or disabled.
6
programmable This exception is caused by a usage fault, such as undefined instruction
executed or illegal state transition attempt. This exception is
synchronous.
-
SVCall
Debug Monitor
-
7-10
11
12
13
-
programmable
programmable
-
Reserved.
This exception is caused by a system service call with an SVC
instruction. This exception is synchronous.
This exception is caused by the debug monitor (when not halting). This
exception is synchronous, but only active when enabled. This exception
does not activate if it is a lower priority than the current activation.
Reserved.
PendSV
SysTick
Interrupts
14
15
16 and
above
programmable
programmable
programmable
This exception is caused by a pendable request for system service. This
exception is asynchronous and only pended by software.
This exception is caused by the SysTick timer reaching 0, when it is
enabled to generate an interrupt. This exception is asynchronous.
This exception is caused by interrupts asserted from outside the ARM
Cortex-M3 core and fed through the NVIC (prioritized). These exceptions
are all asynchronous. Table 4-2 on page 83 lists the interrupts on the
LM3S9B81 controller.
a. 0 is the default priority for all the programmable priorities.
Table 4-2. Interrupts
Vector Number
0-15
16
17
18
19
20
21
22
23
24
25-29
30
31
32
33
34
35
36
Interrupt Number (Bit in
Interrupt Registers)
-
0
1
2
3
4
5
6
7
8
9-13
14
15
16
17
18
19
20
Description
Processor exceptions
GPIO Port A
GPIO Port B
GPIO Port C
GPIO Port D
GPIO Port E
UART0
UART1
SSI0
I²C0
Reserved
ADC0 Sequence 0
ADC0 Sequence 1
ADC0 Sequence 2
ADC0 Sequence 3
Watchdog Timers 0 and 1
Timer 0A
Timer 0B
June 29, 2010
83
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