PIC24FJ256DA210 Datasheet, PDF (139/408 Pages) Microchip Technology – 64/100-Pin, 16-Bit Flash Microcontrollers with Graphics Controller and USB On-The-Go (OTG)

PIC24FJ256DA210 FAMILY
REGISTER 7-42: INTTREG: INTERRUPT CONTROLLER TEST REGISTER
R-0, HSC
U-0
CPUIRQ
—
bit 15
R/W-0
VHOLD
U-0
R-0, HSC R-0, HSC R-0, HSC
—
ILR3
ILR2
ILR1
R-0, HSC
ILR0
bit 8
U-0
—
bit 7
R-0, HSC
VECNUM6
R-0, HSC
VECNUM5
R-0, HSC
VECNUM4
R-0, HSC
VECNUM3
R-0, HSC
VECNUM2
R-0, HSC
VECNUM1
R-0, HSC
VECNUM0
bit 0
Legend:
R = Readable bit
-n = Value at POR
HSC = Hardware Settable/Clearable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
bit 14
bit 13
bit 12
bit 11-8
bit 7
bit 6-0
CPUIRQ: Interrupt Request from Interrupt Controller CPU bit
1 = An interrupt request has occurred but has not yet been Acknowledged by the CPU; this happens
when the CPU priority is higher than the interrupt priority
0 = No interrupt request is unacknowledged
Unimplemented: Read as ‘0’
VHOLD: Vector Number Capture Configuration bit
1 = The VECNUM bits contain the value of the highest priority pending interrupt
0 = The VECNUM bits contain the value of the last Acknowledged interrupt (i.e., the last interrupt that
has occurred with higher priority than the CPU, even if other interrupts are pending)
Unimplemented: Read as ‘0’
ILR<3:0>: New CPU Interrupt Priority Level bits
1111 = CPU Interrupt Priority Level is 15
•
•
•
0001 = CPU Interrupt Priority Level is 1
0000 = CPU Interrupt Priority Level is 0
Unimplemented: Read as ‘0’
VECNUM<5:0>: Vector Number of Pending Interrupt or Last Acknowledged Interrupt bits
VHOLD = 1: The VECNUM bits indicate the vector number (from 0 to 118) of the last interrupt to occur
VHOLD = 0: The VECNUM bits indicate the vector number (from 0 to 118) of the interrupt request
currently being handled
 2010 Microchip Technology Inc.
DS39969B-page 139