Z8F64210100ZDP Zilog, Z8F64210100ZDP Datasheet - Page 79

• Manufacturer Part Number: Z8F64210100ZDP
• Description: ADAPTER ICE Z8 ENCORE 64K 40DIP
• Manufacturer: Zilog

Specifications of Z8F64210100ZDP

• Module/board Type: *
• For Use With/related Products: Z8 Encore!™
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3401

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