Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 75

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

PS024604-1005
Architecture
Master Interrupt Enable
Figure 6 illustrates a block diagram of the interrupt controller.
Figure 6. Interrupt Controller Block Diagram
The master interrupt enable bit (IRQE) in the Interrupt Control Register globally enables
and disables interrupts.
Interrupts are globally enabled by any of the following actions:
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•
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Interrupts are globally disabled by any of the following actions:
•
•
•
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Port Interrupts
Internal Interrupts
System Exceptions
Execution of an Enable Interrupt (EI) instruction
Execution of a Return from Interrupt (IRET) instruction
Writing a 1 to the IRQE bit in the Interrupt Control Register
Execution of a Disable Interrupt (DI) instruction
eZ8 CPU acknowledgement of an interrupt service request from the interrupt controller
Writing a 0 to the IRQE bit in the Interrupt Control Register
Reset
P R E L I M I N A R Y
Medium
Priority
Priority
Priority
High
Low
Product Specification
Priority
Mix
Vector
Service Request
Architecture
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