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5.2
Input/Output Pins
Table 5.1 summarizes the pins of the interrupt controller.
Table 5.1
Pin Configuration
Name
NMI
IRQ5
IRQ4
IRQ3
IRQ2
IRQ1
IRQ0
5.3
Register Descriptions
The interrupt controller has the following registers. For the system control register (SYSCR), refer
to section 3.2.2, System Control Register (SYSCR).
• System control register (SYSCR)
• IRQ sense control register H (ISCRH)
• IRQ sense control register L (ISCRL)
• IRQ enable register (IER)
• IRQ status register (ISR)
• Interrupt priority register A (IPRA)
• Interrupt priority register B (IPRB)
• Interrupt priority register C (IPRC)
• Interrupt priority register D (IPRD)
• Interrupt priority register E (IPRE)
• Interrupt priority register F (IPRF)
• Interrupt priority register G (IPRG)
• Interrupt priority register H (IPRH)
• Interrupt priority register I (IPRI)
• Interrupt priority register J (IPRJ)
• Interrupt priority register K (IPRK)
• Interrupt priority register L (IPRL)
• Interrupt priority register M (IPRM)
I/O
Function
Input
Nonmaskable external interrupt
Rising or falling edge can be selected
Input
Maskable external interrupts
Input
Rising, falling, or both edges, or level sensing, can be selected
Input
Input
Input
Input
Rev. 1.0, 09/02, page 65 of 568
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