DescriptionResetTypeNameBit/Field
Interrupt Pending Vector Number
This field contains the exception number of the highest priority pending
enabled exception. The value indicated by this field includes the effect
of the BASEPRI and FAULTMASK registers, but not any effect of the
PRIMASK register.
DescriptionValue
No exceptions are pending0x00
Reserved0x01
NMI0x02
Hard fault0x03
Memory management fault0x04
Bus fault0x05
Usage fault0x06
Reserved0x07-0x0A
SVCall0x0B
Reserved for Debug0x0C
Reserved0x0D
PendSV0x0E
SysTick0x0F
Interrupt Vector 00x10
Interrupt Vector 10x11
......
Interrupt Vector 1990xD9
0x00ROVECPEND19:12
Return to Base
DescriptionValue
There are preempted active exceptions to execute.0
There are no active exceptions, or the currently executing
exception is the only active exception.
1
This bit provides status for all interrupts excluding NMI and Faults. This
bit only has meaning if the processor is currently executing an ISR (the
Interrupt Program Status (IPSR) register is non-zero).
0RORETBASE11
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.
0x0ROreserved10:8
Interrupt Pending Vector Number
This field contains the active exception number. The exception numbers
can be found in the description for the VECPEND field. If this field is clear,
the processor is in Thread mode. This field contains the same value as
the ISRNUM field in the IPSR register.
Subtract 16 from this value to obtain the IRQ number required to index
into the Interrupt Set Enable (ENn), Interrupt Clear Enable (DISn),
Interrupt Set Pending (PENDn), Interrupt Clear Pending (UNPENDn),
and Interrupt Priority (PRIn) registers (see page 92).
0x00ROVECACT7:0
169June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller
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