Figure 11-12. Interrupt Controller - Intel i960 Jx Developer's Manual

INTERRUPTS
Interrupt Control
Register
Clear
a Bit
Global
Interrupt
Disable
Interrupt
Pin Mode
Interrupt Pin to
Vector Map
Registers 0 to 2
Interrupt Core
Vector
Core
Ack
Process Priority
(in PC)
Core accepts interrupt if:
* Processor not stopped
* Not executing a fault-call OR
* Interrupt-call action AND
* Between instruction OR
* At a resumption point
11-30
-
XINT0 XINT7
Interrupt Detection
Block
Pending Interrupts
Interrupt Masks
Interrupt
Selection
Expanded-Mode
Block
Vector Ack
Interrupt
Action
Block
Software Interrupt
Priority Register
(Internal)
Core:
* Calls interrupt handlers
* Posts software interrupts
* Checks for software interrupts
* Handles all interrupt table access

Figure 11-12. Interrupt Controller

NMI
TINT0 TINT1
Vector
NMI
Pending
Processor
State