SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 61

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

• C
Carry or borrow flag:
0 = add operation did not result in a carry bit or subtract operation resulted in a borrow bit
1 = add operation resulted in a carry bit or subtract operation did not result in a borrow bit.
• V
Overflow flag:
0 = operation did not result in an overflow
1 = operation resulted in an overflow.
• Q
Sticky saturation flag:
0 = indicates that saturation has not occurred since reset or since the bit was last cleared to zero
1 = indicates when an
This bit is cleared to zero by software using an
11.4.3.7
• ISR_NUMBER
This is the number of the current exception:
0 = Thread mode
1 = Reserved
2 = NMI
3 = Hard fault
4 = Memory management fault
5 = Bus fault
6 = Usage fault
7-10 = Reserved
11 = SVCall
12 = Reserved for Debug
13 = Reserved
14 = PendSV
15 = SysTick
16 = IRQ0
45 = IRQ29
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Interrupt Program Status Register
SSAT
The IPSR contains the exception type number of the current Interrupt Service Routine (ISR).
See the register summary in
or
USAT
instruction results in saturation.
MRS
instruction.
Table 11-2 on page 58
for its attributes. The bit assignments are:
SAM3X/A
SAM3X/A
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