Microchip Technology DM330023-2 Data Sheet
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
DS70283K-page 76
© 2007-2012 Microchip Technology Inc.
REGISTER 7-3:
INTCON1: INTERRUPT CONTROL REGISTER 1
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
NSTDIS
OVAERR
OVBERR
COVAERR
COVBERR
OVATE
OVBTE
COVTE
bit 15
bit 8
R/W-0
R/W-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
U-0
SFTACERR
DIV0ERR
—
MATHERR
ADDRERR
STKERR
OSCFAIL
—
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
NSTDIS: Interrupt Nesting Disable bit
1 = Interrupt nesting is disabled
0 = Interrupt nesting is enabled
1 = Interrupt nesting is disabled
0 = Interrupt nesting is enabled
bit 14
OVAERR: Accumulator A Overflow Trap Flag bit
1 = Trap was caused by overflow of Accumulator A
0 = Trap was not caused by overflow of Accumulator A
1 = Trap was caused by overflow of Accumulator A
0 = Trap was not caused by overflow of Accumulator A
bit 13
OVBERR: Accumulator B Overflow Trap Flag bit
1 = Trap was caused by overflow of Accumulator B
0 = Trap was not caused by overflow of Accumulator B
1 = Trap was caused by overflow of Accumulator B
0 = Trap was not caused by overflow of Accumulator B
bit 12
COVAERR: Accumulator A Catastrophic Overflow Trap Flag bit
1 = Trap was caused by catastrophic overflow of Accumulator A
0 = Trap was not caused by catastrophic overflow of Accumulator A
1 = Trap was caused by catastrophic overflow of Accumulator A
0 = Trap was not caused by catastrophic overflow of Accumulator A
bit 11
COVBERR: Accumulator B Catastrophic Overflow Trap Flag bit
1 = Trap was caused by catastrophic overflow of Accumulator B
0 = Trap was not caused by catastrophic overflow of Accumulator B
1 = Trap was caused by catastrophic overflow of Accumulator B
0 = Trap was not caused by catastrophic overflow of Accumulator B
bit 10
OVATE: Accumulator A Overflow Trap Enable bit
1 = Trap overflow of Accumulator A
0 = Trap disabled
1 = Trap overflow of Accumulator A
0 = Trap disabled
bit 9
OVBTE: Accumulator B Overflow Trap Enable bit
1 = Trap overflow of Accumulator B
0 = Trap disabled
1 = Trap overflow of Accumulator B
0 = Trap disabled
bit 8
COVTE: Catastrophic Overflow Trap Enable bit
1 = Trap on catastrophic overflow of Accumulator A or B enabled
0 = Trap disabled
1 = Trap on catastrophic overflow of Accumulator A or B enabled
0 = Trap disabled
bit 7
SFTACERR: Shift Accumulator Error Status bit
1 = Math error trap was caused by an invalid accumulator shift
0 = Math error trap was not caused by an invalid accumulator shift
1 = Math error trap was caused by an invalid accumulator shift
0 = Math error trap was not caused by an invalid accumulator shift
bit 6
DIV0ERR: Arithmetic Error Status bit
1 = Math error trap was caused by a divide by zero
0 = Math error trap was not caused by a divide by zero
1 = Math error trap was caused by a divide by zero
0 = Math error trap was not caused by a divide by zero
bit 5
Unimplemented: Read as ‘0’
bit 4
MATHERR: Arithmetic Error Status bit
1 = Math error trap has occurred
0 = Math error trap has not occurred
1 = Math error trap has occurred
0 = Math error trap has not occurred
bit 3
ADDRERR: Address Error Trap Status bit
1 = Address error trap has occurred
0 = Address error trap has not occurred
1 = Address error trap has occurred
0 = Address error trap has not occurred