FIQ INDEX
INT_
REQ0
IRQ
FIQ
FIQ LEVEL
PRIORITY ENCODER
IRQ LEVEL
PRIORITY ENCODER
CHANNEL
MAPPING
INT_
REQ1
INT_
REQ2
INT_
REQ126
INT_
REQ125
CHAN0
INTERRUPT
ENABLE
CHAN1 CHAN2
CHAN126
CHAN125
INT_
CHAN0
IRQ / FIQ
LEVEL
INT_
CHAN1
INT_
CHAN2
CHAN126
INT_
CHAN125
FIQ_
CHAN0
FIQ_
CHAN1
FIQ_
CHAN2
FIQ_
CHAN126
FIQ_
CHAN125
IRQ_
CHAN2
IRQ_
CHAN126
IRQ_
CHAN125
IRQ INDEX
FIQ VECTOR
IRQ VECTOR
FIQVECREG
IRQVECREG
PROGRAMMABLE INTERRUPT VECTOR TABLE
Phantom Vector
Channel 0 Vector
Channel 1 Vector
Channel 126 Vector
FIQINDEX IRQINDEX
TO CPU
VIC Port
Register Register
To CPUTo CPU
Register Register
Interrupt Handling Inside VIM
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SPNU563A–March 2018
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Vectored Interrupt Manager (VIM) Module
19.4 Interrupt Handling Inside VIM
A block diagram of the interrupt handling inside VIM is shown in Figure 19-3
Figure 19-3. VIM Interrupt Handling Block Diagram