IA88C00
Data Sheet
Microcontroller
As of Production Version -01
INTERRUPT SOURCES
POLLING
VECTORS
LEVELS
IRQ2
COUNTER 0 ZERO COUNT
EXTERNAL INTERRUPT (P26)
EXTERNAL INTERRUPT (P27)
12
COUNTER 1 ZERO COUNT
EXTERNAL INTERRUPT (P36)
EXTERNAL INTERRUPT (P37)
14
IRQ5
IRQ4
IRQ7
HANDSHAKE CHANNEL 0
EXTERNAL INTERRUPT (P24)
EXTERNAL INTERRUPT (P25)
28
30
HANDSHAKE CHANNEL 1
EXTERNAL INTERRUPT (P34)
EXTERNAL INTERRUPT (P35)
0
2
RESERVED
RESERVED
IRQ3
IRQ0
4
6
EXTERNAL INTERRUPT (P32)
EXTERNAL INTERRUPT (P22)
8
EXTERNAL INTERRUPT (P32)
EXTERNAL INTERRUPT (P22)
10
UART RECEIVE OVERRUN
16
18
UART FRAMING ERROR
UART PARITY ERROR
UART WAKEUP DETECT
UART BREAK DETECT
UART CONTROL CHAR DETECT
IRQ6
IRQ1
UART RECEIVE DATA
EXTERNAL INTERRUPT (P30)
20
22
EXTERNAL INTERRUPT (P20)
24
26
UART ZERO COUNT
EXTERNAL INTERRUPT (P21)
UART TRANSMIT DATA
EXTERNAL INTERRUPT (P31)
Figure 58. Interrupt Levels and Vectors
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