Z86L88 Datasheet, PDF (37/80 Pages) Zilog, Inc. – INFRARED REMOTE CONTROLLERS

Z86L88
Low-Voltage IR Microcontroller
30
R249 IPR
D7 D6 D5 D4 D3 D2 D1 D0
Interrupt Group Priority
000 = Reserved
001 = C>A>B
010 = A>B>C
011 = A>C>B
100 = B>C>A
101 = C>B>A
110 = B>A>C
111 = Reserved
IRQ1, IRQ4, Priority (Group C)
0 = IRQ1>IRQ4
1 = IRQ4>IRQ1
IRQ0, IRQ2, Priority (Group B)
0 = IRQ2>IRQ0
1 = IRQ0>IRQ2
IRQ3, IRQ5, Priority (Group A)
0 = IRQ5>IRQ3
1 = IRQ3>IRQ5
Reserved (must be 0)
Figure 23. Interrupt Priority Register—F9H: Write Only
R250 IRQ
D7 D6 D5 D4 D3 D2 D1 D0
IRQ0 = P32 Input
IRQ1 = P23 Input
IRQ2 = P31 Input
IRQ3 = T16
IRQ4 = T8
Inner Edge
P31  P32  = 00
P31  P32  = 01
P31  P32  = 10
P31  P32  = 11
Figure 24. Interrupt Request Register—FAH: Read/Write
19-4614; Rev 0; 4/09