Z86L88 Datasheet, PDF (45/66 Pages) Zilog, Inc. – INFRARED REMOTE CONTROLLERS

Z86L88/81/86/87/89/73
IR/Low-Voltage Microcontroller
Interrupts. The Z86LXX has five different interrupts. The counter/timers (Table 5). The Interrupt Mask Register glo-
interrupts are maskable and prioritized (Figure 36). The bally or individually enables or disables the five interrupt
five sources are divided as follows: three sources are requests.
claimed by Port 3 lines P33-P31, the remaining two by the
1
IRQ0 IRQ2
IRQ 1, 3, 4
Interrupt
Edge
Select
IRQ Register (D6, D7)
IRQ
IMR
5
Interrupt
Request
Global
Interrupt
Enable
IPR
Priority
Logic
Vector Select
Figure 36. Interrupt Block Diagram
DS96LV00800
PRELIMINARY
45