Z8F64210100ZDA Zilog, Z8F64210100ZDA Datasheet - Page 79
Z8F64210100ZDA
Manufacturer Part Number
Z8F64210100ZDA
Description
ADAPTER ICE Z8 ENCORE 64K 44LQFP
Manufacturer
Zilog
Specifications of Z8F64210100ZDA
Module/board Type
*
For Use With/related Products
Z8 Encore!™
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3400
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Operation
PS019921-0308
Master Interrupt Enable
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:
•
•
•
Interrupts are globally disabled by any of the following actions:
•
•
•
•
•
•
Internal Interrupts
Port Interrupts
Executing an Enable Interrupt (EI) instruction.
Executing an 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.
Executing a Trap instruction.
Illegal Instruction trap.
Figure 10. Interrupt Controller Block Diagram
Medium
Priority
Priority
Priority
High
Low
Priority
Z8 Encore! XP
Mux
Product Specification
Vector
IRQ Request
®
Interrupt Controller
F64XX Series
65
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