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| Z86E3016PSG Datasheet, PDF (157/348 Pages) Zilog, Inc. – Z86E3016PSG | |||
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Z8 CPU
User Manual
139
Interrupt Sources
Table 18 presents the interrupt types, sources, and vectors available in the
Z8® family of processors.
Table 18. Interrupt Types, Sources, and Vectors
Name
IRQ0
IRQ1
IRQ2
IRQ5
Sources
DAV0, IRQ0, Comparator
DAV1, IRQ1
DAV2, IRQ2, TIN, Comparator
IRQ3
Serial In
T0
Serial Out
T1
Vector Location Comments
0,1
External (P32), Edge
Triggered; Internal
2,3
External (P33), Edge
Triggered; Internal
4,5
External (P31), Edge
Triggered; Internal
6,7
External (P30) or (P32),
Edge Triggered;
Internal
6,7
Internal
8,9
Internal
8,9
Internal
10,11
Internal
External Interrupt Sources
External sources involve interrupt request lines IRQ0âIRQ3. IRQ0,
IRQ1, and IRQ2 can be generated by a transition on the corresponding
Port 3 pin (P32, P33, and P31 correspond to IRQ0, IRQ1, and IRQ2,
respectively).
Figure 92 is a block diagram for interrupt sources IRQ0, IRQ1, and IRQ2.
UM001602-0904
Interrupts
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