Z86C9116 Zilog, Z86C9116 Datasheet - Page 39

• Manufacturer Part Number: Z86C9116
• Description: CMOS Z8 ROMless Microcontrollers
• Manufacturer: Zilog

R249 IPR
D7 D6 D5
R250 IRQ
D7
D6
D5
D4 D3
D4 D3
D2
D2
D1 D0
D1 D0
IRQ0 = P32 Input (D0 = IRQ0)
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P30 Input, Serial Input
IRQ4 = T0, Serial Input
IRQ5 = T1
Reserved (Must be 0)
Interrupt Group Priority
Reserved = 000
C>A>B = 001
A>B>C = 010
A>C>B = 011
B>C>A = 100
C>B>A = 101
B>A>C = 110
Reserved = 111
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)