FUJITSU MB91460 SERIES FR60 - Manual (Page 346)

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Chapter 25 External Interrupt
7.Q & A
7.5 How do I enable, disable, and clear interrupts?
Enable flag for interrupt requests, interrupt request flag
Use interrupt enabling bits (ENIR0.ENx. x = 0-7) and (ENIR1.ENx. x = 8-15) to enable interrupts.
Use interrupt request bits (EIRR0.ERx. x = 0-7) and (EIRR1.ERx. x = 8-15) to clear interrupt requests.
Interrupt enabling bit (En [n = 0-15])
To disable interrupt requests Sets to “0”
To enable interrupt requests Sets to “1”
Interrupt request bit (Ern [n = 0-15])
To clear interrupt requests Writes “0”