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Z86L71 数据表(PDF) 39 Page - Zilog, Inc. |
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Z86L71 数据表(HTML) 39 Page - Zilog, Inc. |
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39 / 61 page ![]() Z86L70/71/75/C71 Zilog IR/Low-Voltage Microcontroller DS97LVO0500 P R E L I M I N A R Y 1-39 1 Interrupts. The Z86L7X has five different interrupts. The interrupts are maskable and prioritized (Figure 30). The five sources are divided as follows: three sources are claimed by Port 3 lines P33-P31, the remaining two by the counter/timers (Table 3). The Interrupt Mask Register glo- bally or individually enables or disables the five interrupt requests. Figure 30. Interrupt Block Diagram Interrupt Edge Select IRQ Register (D6, D7) IRQ 1, 3, 4 IRQ IMR IPR Priority Logic 5 Vector Select IRQ0 IRQ2 Global Interrupt Enable Interrupt Request |
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